Rake
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B2 noun /reɪk/

Rake

レーキ
Meaning
a garden tool with a long handle and prongs for gathering leaves; to gather with a rake
Example
He used a rake to gather the fallen autumn leaves.
彼は落ち葉を集めるためにレーキを使いました。
B2 adjective /rɪˈlaɪ.ənt/

reliant

依存している
Meaning
depending on someone or something for support
Example
The country is too reliant on imported goods.
その国は輸入品に依存しすぎている。
B2 adjective /ˌrez.ɪˈden.ʃəl/

residential

住宅の
Meaning
Designed for people to live in.
Example
The institution was fully residential.
その施設は完全に住宅のものでした。
B2 verb /ˈrɛkən/

reckon

推測する
Meaning
To think, believe, or expect something; to calculate or estimate.
Example
I reckon it will rain later today.
今日は後で雨が降るだろうと思います。
B2 verb /ˈrʌm.bəl/

rumble

幸せ
Meaning
to make a continuous deep, resonant sound
Example
Thunder rumbled in the distance.
彼女は賞を受け取ったとき、自分の幸せを隠すことができませんでした。
B2 noun /ˈroʊ.lɪŋ pɪn/

Rolling pin

めん棒
Meaning
a cylindrical tool used for rolling out dough or pastry
Example
Roll the dough flat with a rolling pin.
めん棒で生地を広げてください。
B2 adjective /ˈruː.mi/

Roomy

広々とした; 広いスペースのある
Meaning
spacious; having a lot of room
Example
The apartment is very roomy with spacious bedrooms.
アパートメントは広々としており、広いベッドルームがあります。
B2 noun /ˈrɪdəl/

Riddle

謎
Meaning
a question or statement intentionally phrased so as to require ingenuity in ascertaining its answer or meaning; a puzzle
Example
The ancient riddle stumped all the scholars for years.
その古代の謎は何年もの間、すべての学者を困らせました。
B2 noun /ˈruːdnəs/

Rudeness

無礼
Meaning
the quality of being impolite, discourteous, or offensive in behavior or speech
Example
His rudeness shocked everyone at the dinner party.
彼の無礼さはディナーパーティーで皆を驚かせました。
B2 verb /rɪˈstrɪkt/

restrict

制限する
Meaning
To limit the size, amount, or range of something.
Example
The government decided to restrict the use of plastic bags.
政府はプラスチック袋の使用を制限することを決定しました。
B2 noun ˈrɛvənuː

revenue

収益
Meaning
Income, especially when of a company or organization.
Example
The company's revenue grew by 10% this year.
会社の収益は今年10%増加しました。
B2 adjective ˈræd.ɪ.kəl

radical

伝統的な信念やシステムに反する根本的な変化をもたらす能力がある
Meaning
Capable of bringing fundamental changes opposite to conventional beliefs or systems.
Example
The leader proposed radical economic reforms.
リーダーはラディカルな経済改革を提案しました。
B2 adjective /rɪˈmuːvəbəl/

removable

取り外し可能な
Meaning
able to be removed or taken away
Example
This phone has a removable battery.
この電話には取り外し可能なバッテリーがあります。
B2 noun /ˌriː.ɪnˈfɔːrs.mənt/

reinforcement

強化
Meaning
Strengthening or supporting something, especially behavior or learning.
Example
Positive reinforcement helps in learning.
積極的な強化は学習に役立ちます。
B2 noun /rɪˈfɔːr.mər/

Reformer

改革者
Meaning
a person who works to bring about positive changes in society or institutions
Example
The social reformer dedicated her life to improving education for all children.
社会的な改革者は、すべての子供たちの教育を改善するために自分の人生を捧げました。
B2 noun/verb /rɪˈmɑːrk/

remark

発言
Meaning
something that is said; a comment
Example
She made a remark about the weather.
彼女は天気について発言した。
B2 verb /reɪl/

rail

抗議する
Meaning
to complain or protest strongly about something
Example
He railed against the unfair decision.
彼は不公平な決定に対して強く抗議した。
B2 noun /rɪˈlʌk.təns/

Reluctance

嫌悪感; ためらい
Meaning
unwillingness to do something; hesitation
Example
He showed reluctance to accept the job offer.
彼は仕事のオファーを受け入れることに嫌悪感を示した。
B2 verb /rɪˈzuːm/

resume

再開する
Meaning
to start again after a pause or interruption
Example
We will resume the meeting after lunch.
ランチの後に会議を再開します。
B2 noun /ˈrɒbəɹi/

robbery

強盗
Meaning
the crime of stealing from someone or somewhere using force or threat
Example
The police are investigating the robbery at the local store.
警察は地元の店での強盗事件を調査しています。
B2 verb /roʊm/

roam

歩き回る
Meaning
to walk or travel without a specific destination; to wander
Example
Wild animals roam freely in the forest.
野生動物は森の中を自由に歩き回っています。
B2 verb /ˌriːkriˈeɪt/

recreate

再創造する
Meaning
to create or produce something again, especially a new version of something lost or destroyed
Example
The team recreated the lost dataset from backups.
チームはバックアップから失われたデータセットを再作成しました。
B2 noun /ˈruːmər/

Rumour

噂; ゴシップ; ニュース
Meaning
a currently circulating story or report of uncertain or doubtful truth; gossip
Example
There's a rumour that the company will close next month.
会社が来月閉鎖されるという噂があります。
B2 adverb /rɪˈmɑːrkəbli/

remarkably

驚くべき方法で
Meaning
in a way that is worthy of attention or notice; surprisingly
Example
She did remarkably well in the competition.
彼女はコンペティションで驚くべき成果を上げました。
B2 noun /ˌrɛvəˈleɪʃən/

revelation

啓示
Meaning
A surprising and previously unknown fact, especially one made known in a dramatic way.
Example
The book was full of shocking revelations about the politician.
その本はその政治家に関する衝撃的な啓示で満ちていました。
B2 adjective /ˈrændəm/

Random

ランダム
Meaning
without pattern or predetermined order; happening by chance
Example
She selected a random book from the library shelf.
彼女は図書館の棚からランダムに本を選びました。
B2 adjective /rɪˈfaɪnd/

Refined

洗練された; 精製された
Meaning
elegant and cultured in appearance, manner, or taste; purified
Example
She has very refined taste in art and music.
彼女は芸術と音楽に非常に洗練された趣味を持っています。
B2 verb /rɪˈzɪst/

resist

抵抗する
Meaning
to oppose or fight against; to withstand
Example
He could not resist the temptation.
彼は誘惑に抵抗できませんでした。
B2 noun /ˈreɪ.dɑːr/

Radar

レーダー
Meaning
a system for detecting the presence, direction, distance of aircraft, ships by sending out radio waves
Example
The radar detected an unknown aircraft approaching the base.
レーダーは基地に接近する未知の航空機を検出しました。
B2 noun rɪˈtɛnʃən

retention

保持
Meaning
The continued possession, use, or control of something
Example
The retention of information is essential for academic success.
情報の保持は学問的成功のために重要です。
B2 noun/verb /ræft/

raft

筏
Meaning
A flat structure made of logs or planks tied together, used as a boat or floating platform; to travel or transport on such a structure.
Example
They built a raft to cross the river.
彼らは川を渡るために筏を作った。
B2 noun rɪsk ˈfæktər

risk factor

リスク要因
Meaning
Something that increases the likelihood of developing a disease or condition
Example
Water pollution is a significant risk factor for health.
水質汚染は健康にとって重要なリスク要因です。
B2 adjective /rɪˈliːvd/

relieved

安心した
Meaning
feeling happy and less worried after something stressful has been removed or resolved
Example
She felt relieved after hearing the good news.
良い知らせを聞いた後、彼女は安心した。
B2 noun /rʌst/

Rust

錆
Meaning
reddish-brown coating formed on iron or steel by oxidation; corrosion
Example
The old car was covered in rust after years of neglect.
古い車は何年も放置されていた後、サビで覆われていました。
B2 noun /ˌrɪəlɪˈzeɪʃən/

realization

実現
Meaning
the act of becoming fully aware of something as a fact
Example
Her realization of the problem helped solve the issue.
彼女の問題の認識が問題解決に役立った。
B2 noun /ræk/

Rack

ラック
Meaning
a framework or structure for holding or storing things
Example
She hung her coat on the rack by the door.
彼女はドアの横のラックにコートを掛けた。
B2 adjective /ˈreɪsɪst/

racist

人種差別主義者
Meaning
showing or feeling discrimination or prejudice against people of other races
Example
He was accused of making racist comments.
彼は人種差別的なコメントをしたとして非難された。
B2 noun /ˌreɡ.jʊˈlær.ɪ.ti/

Regularity

規則正しさ
Meaning
the quality of being regular; occurring at fixed intervals or in a consistent pattern
Example
The regularity of his exercise routine helped him stay healthy.
彼の運動習慣の規則正しさが健康を維持するのに役立ちました。
B2 noun /ˈrɒbər/

robber

強盗
Meaning
a person who steals property from others, often using force or threat
Example
The robber was caught after a quick police chase.
素早い警察の追跡の後、強盗は捕まった。
B2 noun /rɪˈstrɪk.ʃən/

Restriction

制限; 限界; コントロール
Meaning
a limiting condition or measure; the limitation or control of someone or something
Example
There are strict restrictions on smoking in public places.
公共の場所での喫煙には厳格な制限があります。
B2 noun ˌreɪ.di.oʊ.ækˈtɪv.ə.ti

radioactivity

放射性
Meaning
The emission of ionizing radiation or particles caused by the spontaneous disintegration of atomic nuclei.
Example
Radioactivity is used in medical treatments like cancer therapy.
放射性は、がん治療のような医療に用いられている。
B2 noun /reɪdʒ/

rage

怒り
Meaning
intense anger or fury
Example
She shouted in a fit of rage after hearing the news.
彼女はそのニュースを聞いて怒りの叫び声を上げました。
B2 verb rɪˈzaɪn

resign

辞任する
Meaning
Voluntarily leave a job or other position.
Example
Ministers were forced to resign.
大臣たちは辞任を余儀なくされました。
B2 verb /rɪˈkɜːr/

recur

Meaning
to happen again, especially repeatedly or at regular intervals
Example
The headache tends to recur every few weeks.
B2 verb /rɪˈzɛnt/

resent

恨む
Meaning
to feel bitterness or displeasure about something or someone
Example
She began to resent the constant criticism from her boss.
彼女は上司からの絶え間ない批判をリゼントし始めました。
B2 noun /red liːf/

Red leaf

赤い葉
Meaning
red-colored leafy vegetable; amaranth leaves used as greens
Example
Red leaf is rich in iron and is commonly eaten in Bengali households.
赤い葉は鉄分が豊富で、ベンガルの家庭でよく食べられます。
B2 noun /ˈriːteɪlər/

retailer

小売業者
Meaning
a person or business that sells goods to consumers rather than to other businesses
Example
The retailer offers discounts on electronic products.
小売業者は電子製品に割引を提供しています。
B2 adjective /rɪˈflektɪv/

Reflective

反射的; 思慮深い; 光や画像を反射できる
Meaning
thoughtful; contemplative; able to reflect light or images
Example
After the meeting, he was in a reflective mood.
会議の後、彼は反射的な気分だった。
B2 adjective /rɪˈzɪl.i.ənt/

resilient

回復力のある
Meaning
Able to withstand or recover quickly from difficult conditions.
Example
Resilient materials ensure durability.
回復力のある素材は耐久性を保証します。
B2 verb /ˈreɡjəleɪt/

regulate

規制する
Meaning
to control or maintain according to rules or laws
Example
The government regulates food safety.
政府は食品安全を規制しています。
B2 noun /ˈreɪʃoʊ/

ratio

比率
Meaning
a relationship between two numbers showing how many times the first number contains the second
Example
The ratio of boys to girls in the class is 2:1.
クラスでの男の子と女の子の比率は2:1です。
B2 verb /rɪˈliːv/

relieve

Meaning
to make pain, distress, or difficulty less severe or serious
Example
The medicine helped relieve his headache.
B2 noun /ˈruːmər/

rumor

噂
Meaning
a currently circulating story or report of uncertain or doubtful truth.
Example
There’s a rumor that the company will merge next year.
来年、会社が合併するという噂があります。
B2 noun /ˈraɪvəlri/

Rivalry

ライバル関係; 競争
Meaning
competition for the same objective or for superiority in the same field; the state of being rivals
Example
The rivalry between the two teams made the match exciting.
二つのチーム間のライバル関係が試合を興奮させた。
B2 noun /ˈreɪn.dʒər/

ranger

レンジャー
Meaning
A person responsible for protecting and managing forests, parks, or natural areas.
Example
The park ranger guided the tourists through the forest trail.
公園のレンジャーは観光客を森の小道を案内しました。
B2 noun /ˈroʊstɪd miːt/

Roasted meat

ロースト肉
Meaning
meat cooked by dry heat in an oven or over fire
Example
The roasted meat was perfectly seasoned and tender.
ロースト肉は完璧に調味され、柔らかかった。
B2 adjective /rɪˈstrɪk.tɪd/

Restricted

制限された; 制御された; 制限付き
Meaning
limited or controlled; subject to restrictions
Example
Access to this area is restricted to authorized personnel only.
このエリアへのアクセスは、認可されたスタッフのみが制限されています。
B2 noun rɪˈkruːt.mənt

recruitment

採用
Meaning
The action of finding new people to join an organization or support a cause.
Example
Recruitment strengthens the workforce.
採用は労働力を強化します。
B2 adverb /rɪˈlʌk.tənt.li/

Reluctantly

いやいや
Meaning
in an unwilling manner; with hesitation or resistance
Example
She reluctantly agreed to help with the project.
彼女はプロジェクトを手伝うことに渋々同意した。
B2 noun /rɛlm/

realm

Meaning
A kingdom or domain; a field or area of activity or interest.
Example
He is well known in the realm of science.
B2 verb /rɪˈvaɪv/

revive

蘇生する
Meaning
To bring back to life, consciousness, or activity.
Example
The paramedics managed to revive the unconscious man.
救急隊員は意識不明の男性を蘇生させることに成功した。
B2 adjective /ˈræp.ɪd/

Rapid

迅速な；急速な；素早い；
Meaning
happening in a short time or at a fast pace
Example
The rapid growth of technology has changed our daily lives.
テクノロジーの急速な成長は私たちの日常生活を変えました。
B2 noun /rɪm/

rim

縁
Meaning
the outer edge or border of a circular object
Example
The coffee cup had a chip on its rim.
コーヒーカップの縁にひびが入っていました。
B2 adjective /rɪˈspek.tə.bəl/

Respectable

尊敬すべき
Meaning
worthy of respect; having good reputation; decent
Example
He comes from a respectable family in the community.
彼は地域社会の尊敬すべき家族から来ました。
B2 verb /rɪˈvoʊlt/

revolt

反乱する
Meaning
to rebel against authority; to feel disgust
Example
The people revolted against the corrupt government.
人々は腐敗した政府に反乱を起こしました。
B2 verb /ˌriː.ɪnˈfɔːrs/

reinforce

強化する
Meaning
To strengthen or support something with additional material, people, or effort.
Example
The teacher used examples to reinforce the lesson.
教師は例を使って授業を強化しました。
B2 noun rɪˈzentmənt

resentment

憤り
Meaning
Bitter indignation at having been treated unfairly.
Example
Resentment grew among the students.
学生の間で憤りが増大した。
B2 adjective /rɪˈzɜːrvd/

Reserved

控えめな; 内向的な
Meaning
slow to reveal emotion or opinions; restrained in manner
Example
She is quite reserved and doesn't talk much in meetings.
彼女はかなり控えめで、会議ではあまり話しません。
B2 noun /rɪˈmuː.vəl/

Removal

撤去; 除去; 解雇;
Meaning
the action of taking something away or eliminating it; dismissal from office
Example
The removal of the old furniture took all day.
古い家具の除去に一日中かかりました。
B2 adjective /ˈrɪdʒ.ɪd/

Rigid

硬直
Meaning
hard and stiff; not able to bend; strict and unwilling to change
Example
The company has a rigid dress code that all employees must follow.
会社にはすべての従業員が従う必要がある厳格なドレスコードがあります。
B2 verb /rɪˈkʌvərɪŋ/

recovering

回復
Meaning
the process of getting better after illness, loss, or difficulty
Example
She is still recovering from the flu.
彼女はまだインフルエンザから回復しています。
B2 verb /reɪd/

raid

踏み込む
Meaning
to attack suddenly; to search and seize
Example
Police raid the illegal gambling house.
警察は違法なギャンブルの家に踏み込む。
B2 noun /rɪˈstreɪnt/

Restraint

抑制; 自制
Meaning
the action of keeping someone or something under control; self-control
Example
She showed great restraint in not responding to the criticism.
彼女は批判に反応しなかったことに大きな自制心を見せた。
B2 noun /rɪˌlaɪəˈbɪləti/

reliability

信頼性
Meaning
the quality of being trustworthy or performing consistently well
Example
Customers value the reliability of our service.
お客様は私たちのサービスの信頼性を重視しています。
B2 noun /ˈrækɪt/

racket

ラケット / 騒音
Meaning
A piece of equipment used to hit the ball in sports like tennis or badminton; also a loud noise or an illegal scheme.
Example
He bought a new tennis racket for the match.
彼は試合のために新しいテニスラケットを買った。
B2 noun /ˈraɪdər/

rider

ライダー
Meaning
A person who rides a horse, bicycle, motorcycle, or other vehicle.
Example
The rider fell off the horse.
ライダーは馬から落ちました。
B2 adjective /ˈrɑː.ki/

Rocky

岩だらけの; 不安定な; 難しい
Meaning
full of rocks; unsteady; difficult
Example
The rocky path made hiking difficult for the tourists.
岩だらけの道は観光客のハイキングを難しくしました。
B2 noun /rɪˈvaɪ.vəl/

Revival

復活
Meaning
an improvement in the condition or strength of something; renewed interest in or attention to something
Example
There has been a revival of interest in traditional crafts.
伝統的な工芸への関心が復活しました。
B2 noun /ˈrɛlɪvəns/

relevance

関連性
Meaning
the quality or state of being closely connected or appropriate
Example
The relevance of the information was clear to everyone.
情報の関連性はすべての人に明確でした。
B2 verb /rɪˈteɪn/

retain

保持する
Meaning
to keep possession of something
Example
The company decided to retain its experienced employees.
会社は経験豊富な従業員を保持することに決めました。
B2 noun /rɪˈsɪp.i.ənt/

Recipient

受取人
Meaning
a person who receives something
Example
She was the recipient of the prestigious award.
彼女はその名誉ある賞の受取人でした。
B2 noun /ˈrɛnəˌsɑːns/

renaissance

ルネサンス
Meaning
a revival of art, culture, or learning; a period of renewed interest and growth
Example
The city experienced a cultural renaissance during the 1990s.
その都市は1990年代に文化的なルネサンスを経験しました。
B2 noun /rɪˈhɜːr.səl/

Rehearsal

リハーサル; 公演の練習
Meaning
a practice performance of a play, concert, or other work for later public performance
Example
The final rehearsal before opening night went perfectly.
開幕前の最後のリハーサルは完璧でした。
B2 noun /rɪˈdʒɛkʃən/

rejection

拒絶
Meaning
the action of refusing or dismissing something or someone
Example
Her rejection of the offer surprised everyone.
彼女の提案の拒絶は皆を驚かせた。
B2 verb /rɪˈkruːt/

recruit

採用する
Meaning
to enlist or hire people for a job, service, or membership
Example
The company is trying to recruit more software engineers.
その会社はもっと多くのソフトウェアエンジニアをリクルートしようとしています。
B2 noun /ˈraɪvəl/

Rival

ライバル; 競争相手;
Meaning
a person or thing competing with another for the same objective or for superiority in the same field
Example
The two companies have been business rivals for decades.
二つの企業は何十年もの間、商業上のライバルです。
B2 adjective /ˈrɒt.ən/

Rotten

腐った; 悪い
Meaning
decayed; spoiled; bad
Example
The apple is rotten and should be thrown away.
リンゴは腐っていて、捨てるべきです。
B2 noun/adjective /rɪˈpʌblɪkən/

republican

共和党員
Meaning
a member or supporter of a republican political party or system
Example
The republican candidate won the election.
リパブリカン候補者は選挙に勝利しました。
B2 noun /ˈreɪ.zən/

Raisin

レーズン
Meaning
dried grape
Example
She added raisins to the oatmeal cookies for extra sweetness.
彼女はオートミールクッキーに甘さを加えるためにレーズンを加えました。
B2 noun /rɪˈmeɪnz/

remains

遺物
Meaning
the parts, pieces, or substances that are left after the rest has been used or removed
Example
The remains of the meal were left on the table.
食事の残り物はテーブルに残されていた。
B2 adjective /rɪˈspɒn.sɪv/

Responsive

反応が早い
Meaning
reacting quickly and positively; readily reacting to suggestions or changes
Example
The website is very responsive and loads quickly on all devices.
そのウェブサイトは非常にレスポンシブで、すべてのデバイスで迅速に読み込まれます。
B2 noun /ˈrem.ə.di/

Remedy

薬; 治療; 問題解決の手段
Meaning
a medicine or treatment for a disease; a solution to a problem
Example
This herbal remedy helps with headaches.
このハーブの薬は頭痛に効く。
B2 noun /ˌrep.ɪˈtɪʃ.ən/

Repetition

繰り返し
Meaning
the action of repeating something that has already been said or written
Example
Constant repetition helps students memorize vocabulary effectively.
継続的な繰り返しは、学生が語彙を効果的に覚えるのを助けます。
B2 adjective /ˈruː.tɪd/

Rooted

根付いた
Meaning
deeply established; firmly fixed
Example
His beliefs are deeply rooted in tradition.
彼の信念は伝統に深く根ざしている。
B2 noun, verb /rɪər/

rear

後ろ / 育てる
Meaning
the back part of something; to bring up or raise children or animals
Example
The mother cat reared her kittens in a quiet corner.
母猫は静かな隅で子猫たちを育てました。
B2 noun /ˌrɛfəˈriː/

referee

審判
Meaning
a person who oversees a game or match to ensure the rules are followed
Example
The referee stopped the game after a foul.
審判はファウルの後、試合を停止しました。
B2 noun /ˈrerəti/

Rarity

珍しい状態; 普通でないもの、または希少なもの
Meaning
the state of being rare; something that is uncommon or scarce
Example
The antique vase was a rarity worth thousands of dollars.
その古代の花瓶は、数千ドルの価値がある珍しいものだった。
B2 noun /ˌref.jʊˈdʒiː/

Refugee

難民
Meaning
a person who has been forced to leave their country in order to escape war, persecution, or natural disaster
Example
The refugee camp provided temporary shelter for thousands of displaced families.
難民キャンプは、何千人もの避難した家族に一時的な避難所を提供しました。
B2 noun /ˌrɛprɪzɛnˈteɪʃən/

representation

代表
Meaning
the action of speaking or acting on behalf of someone or something
Example
Her representation of the team was impeccable.
彼女のチームの代表は完璧でした。
B2 verb /rɪˈnuː/

renew

Meaning
to make something new again or extend its period of validity
Example
I need to renew my passport before traveling.
B2 verb /riːˈɔːrɡənaɪz/

reorganize

再編成する
Meaning
to arrange something again in a different way for greater efficiency or order
Example
The manager decided to reorganize the team structure.
マネージャーはチームの構造を再編成することに決めました。
B2 noun /ˈrɛfjuːdʒ/

refuge

避難所
Meaning
a place that provides shelter or protection from danger or distress
Example
The villagers took refuge in the temple during the storm.
村人たちは嵐の間、寺院に避難した。
B2 noun /rɪˈsɛs/

recess

休憩
Meaning
A short break from work or school; also a small space set back in a wall.
Example
The children played outside during recess.
子供たちは休憩中に外で遊びました。
B2 noun /ˌreɡ.jʊˈleɪ.ʃənz/

regulations

規制
Meaning
Rules or directives made and maintained by an authority.
Example
Strict regulations ensure fair practices.
厳格な規制は公正な慣行を確保します。
B2 adverb /ˈræp.ɪd.li/

Rapidly

速やかに; 急速に
Meaning
at a fast speed; quickly
Example
The company is rapidly expanding into new markets.
会社は新しい市場に急速に拡大しています。
B2 noun ˌrev.əˈluː.ʃənz

revolutions

革命
Meaning
Dramatic and wide-reaching changes in political, social, or economic systems, often involving the overthrow of a government or social order.
Example
Revolutions often lead to significant societal changes.
革命はしばしば社会的な変革をもたらす。
B2 noun /rɪb/

Rib

あばら骨
Meaning
one of the curved bones that protect the chest and lungs
Example
He broke his rib in the accident.
彼は事故であばら骨を折った。
B2 adjective /rɪˈnjuː.ə.bəl/

renewable

再生可能
Meaning
Able to be renewed or replaced naturally; not depleted when used.
Example
Renewable resources minimize environmental damage.
再生可能な資源は環境へのダメージを最小限に抑えます。
B2 verb /rɪˈkɔːl/

recall

思い出す
Meaning
to bring (a memory, fact, or situation) back into one's mind
Example
I can't recall the last time we met.
最後に会った時のことを思い出せません。
B2 noun rɪˈpʌb.lɪk

republic

共和国
Meaning
A state in which supreme power is held by the people and their elected representatives, with an elected or nominated president rather than a monarch.
Example
A republic is governed by representatives of the people.
共和国は人民の代表者によって治められています。
B2 noun /ˌriːprəˈdʌkʃən/

reproduction

再生, 繁殖
Meaning
The process of producing offspring; the act of copying or duplicating.
Example
The textbook included a detailed diagram of human reproduction.
教科書には人間のリプロダクションの詳細な図が含まれていました。
B2 adjective ˌriːprəˈdʌktɪv

reproductive

繁殖に関する
Meaning
Relating to the reproduction of offspring.
Example
The reproductive cycle of pests can cause rapid infestations.
害虫の生殖サイクルは迅速な感染を引き起こす可能性があります。
B2 verb /rɪˈfaɪn/

refine

洗練する
Meaning
to improve by making small changes; to purify
Example
The chef refines the recipe to perfection.
シェフはレシピを完璧に洗練します。
B2 verb /reɪn/

reign

統治する
Meaning
to rule as a king or queen; to be dominant
Example
The queen reigned for over sixty years.
女王は60年以上統治していました。
B2 noun /ˈriːzənɪŋ/

reasoning

推論
Meaning
the process of thinking about something in a logical way in order to form a conclusion or judgment
Example
Her reasoning for leaving was clear and logical.
彼女の出発の推論は明確で論理的でした。
B2 noun /ˈreɪtɪŋ/

rating

評価
Meaning
an evaluation or assessment, usually numerical
Example
The movie received a high rating from critics.
その映画は批評家から高い評価を受けました。
B2 adjective ˌrev.əˈluː.ʃən.ər.i

revolutionary

革命的な
Meaning
Involving or causing a complete or dramatic change.
Example
Revolutionary ideas are reshaping the industry.
革命的なアイデアが業界を再編成しています。
B2 noun /ˌren.əˈveɪ.ʃən/

Renovation

リノベーション; 改修
Meaning
the act of renovating; restoration to a former better state
Example
The old house underwent a complete renovation last year.
その古い家は昨年完全な改修を受けました。
B2 noun /ˈraɪfəl/

Rifle

ライフル
Meaning
a gun with a long barrel that is fired from the shoulder
Example
The soldier carried a rifle during the mission.
兵士は任務中にライフルを携帯していました。
B2 verb /rɪˈzɑlv/

resolve

解決する
Meaning
to solve a problem; to decide firmly
Example
The manager resolves the conflict between employees.
マネージャーは従業員間の対立を解決します。
B2 noun /ræɡ/

Rag

古い布; 掃除に使われる擦り切れた衣類
Meaning
a piece of old cloth used for cleaning; worn-out clothing
Example
She used an old rag to clean the dusty table.
彼女は古い布を使って、ほこりだらけのテーブルを掃除しました。