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B2 verb /rɪˈvɜːs/

reverse

反転する
Meaning
to change something to the opposite direction, position, or result
Example
She quickly reversed the car out of the driveway.
彼女はすぐに車をドライブウェイからバックさせました。
B2 noun /ˈrɪk.ʃɔː/

Rickshaw

リクシャ
Meaning
a light two-wheeled passenger vehicle drawn by one or more people
Example
We took a rickshaw to reach the busy marketplace.
忙しい市場に到着するためにリクシャを利用しました。
B2 verb /rɪˈliːv/

relieve

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

resistant

耐性
Meaning
not affected by something; able to oppose or withstand
Example
This fabric is resistant to water and stains.
この布は水と汚れに強いです。
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 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 noun, verb, adjective /ræŋk/

rank

ランク
Meaning
A position in a hierarchy; to place in order according to importance or quality.
Example
She quickly rose to a senior rank in the company.
彼女は会社で素早く上級ランクに昇進しました。
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 verb /ˈrɛnəˌveɪt/

renovate

改装する
Meaning
to restore something old to a good state or to improve it
Example
They decided to renovate the old house before moving in.
彼らは引っ越す前に古い家を改装することに決めました。
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。
B2 verb /rɪˈsaɪt/

recite

暗唱する
Meaning
To say aloud something learned, especially poetry or text, from memory.
Example
The child recited a poem in front of the class.
その子はクラスの前で詩を暗唱しました。
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 /ˌrezəˈveɪʃən/

Reservation

予約
Meaning
the action of reserving something; an arrangement whereby something is reserved for a particular person; a qualification to an expression of agreement or approval
Example
I made a reservation at the restaurant for tonight.
今夜のレストランの予約をしました。
B2 noun rɪˈzɪl.i.əns

resilience

レジリエンス
Meaning
The ability to recover quickly from difficulties; toughness.
Example
Testing the resilience of wood is crucial.
木材のレジリエンスをテストすることは非常に重要です。
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 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 /reɪˈʒiːm/

regime

政権
Meaning
a system or form of government, often authoritarian
Example
The military regime controlled the country for decades.
軍事政権は数十年間国を支配していました。
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 /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 /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 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 adjective /rɪˈɡret.ə.bəl/

Regrettable

残念な; 失望させる; 悲しい
Meaning
causing or deserving regret; unfortunate; deplorable
Example
It is regrettable that so many talented people left the company.
こんなに多くの才能ある人々が会社を辞めたのは残念です。
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 /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 verb /ˌriːəˈreɪndʒ/

rearrange

再配置する
Meaning
to change the order or position of something
Example
She decided to rearrange the furniture in her living room.
彼女はリビングルームの家具を再配置することに決めました。
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 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 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 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 adverb /rɪˈɡɑrdləs/

regardless

関係なく
Meaning
without paying attention to the current situation or condition
Example
She will go to the party regardless of the weather.
彼女は天気に関係なくパーティーに行きます。
B2 noun /ˈrest.ləs.nəs/

Restlessness

不安
Meaning
the inability to rest or relax as a result of anxiety or boredom
Example
His restlessness during the long meeting was obvious to everyone.
長い会議中、彼の不安は全員に明らかだった。
B2 adjective /ˈrɪdən/

ridden

覆われた
Meaning
Full of or dominated by something unpleasant.
Example
The country was ridden with corruption.
その国は腐敗に覆われていた。
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 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 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 /raɪˈnɒs.ər.əs/

Rhinoceros

サイ
Meaning
a large, heavy animal with thick skin and one or two horns on its nose
Example
The rhinoceros charged through the grassland.
サイは草原を突進した。
B2 noun ˌrɛstəˈreɪʃən

restoration

修復
Meaning
The process of returning something to its former condition.
Example
The restoration of the forest began after decades of neglect.
森林の修復は数十年の放置後に始まりました。
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 rɪˈnaʊnd

renowned

著名
Meaning
Known or talked about by many people; famous.
Example
The renowned scientist led the reform panel.
その著名な科学者は改革パネルを指導しました。
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 noun /ˈræŋkɪŋ/

ranking

ランキング
Meaning
a position in a list or hierarchy, especially in terms of performance or importance
Example
His ranking in the competition improved after each round.
彼の競技でのランキングは、各ラウンド後に向上しました。
B2 noun /rɪˈsiː.vər/

Receiver

受話器
Meaning
a person or thing that receives something; the part of a telephone containing the earpiece and mouthpiece
Example
She picked up the receiver to answer the phone call.
彼女は電話に出るために受話器を取った。
B2 adverb /ruːˈtiːnli/

routinely

定期的に
Meaning
as part of a regular procedure; habitually
Example
The staff routinely checks the equipment for safety.
スタッフは定期的に安全のために機器を点検します。
B2 verb /rɪˈfreʃ/

refresh

リフレッシュする
Meaning
to make fresh again; to restore energy
Example
A cold drink refreshes me on hot days.
暑い日には冷たい飲み物が私をリフレッシュさせます。
B2 verb /rɪˈɡeɪn/

regain

回復する
Meaning
to get back something that was lost; to recover
Example
He regains his strength after the illness.
彼は病気の後、力を回復する。
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 noun /ˈraɪət/

Riot

暴動; 騒乱
Meaning
a violent disturbance of the peace by a crowd; an uncontrolled outburst
Example
The peaceful protest turned into a riot when violence broke out.
平和的な抗議は暴力が起こったときに暴動に変わった。
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 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 /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 /ˈreɪ.zɪnz/

Raisins

レーズン
Meaning
dried grapes, often used in cooking and baking
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た。
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 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 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 ˌrɛzɪɡˈneɪʃən

resignation

辞任
Meaning
The acceptance of something undesirable but inevitable; giving up.
Example
Her resignation from the position was unexpected.
彼女の職からの辞任は予想外だった。
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 verb /rɪˈtriːv/

retrieve

取り戻す
Meaning
to get something back that was lost or taken; to recover
Example
She managed to retrieve her lost phone from the taxi.
彼女はタクシーから失われた電話を取り戻すことができました。
B2 adjective rəʊˈbʌst

robust

ロバスト
Meaning
Strong and healthy; vigorous; able to withstand or overcome adverse conditions.
Example
The robust infrastructure ensures reliable communication.
ロバストなインフラは信頼できる通信を保証します。
B2 verb /rɪˈzɜːv/

reserve

予約する
Meaning
to keep something for future use; to book in advance
Example
I want to reserve a table for dinner.
ディナーのためにテーブルを予約したいです。
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 adjective /ˈrʌn daʊn/

run-down

荒れ果てた
Meaning
in a poor condition; worn out or neglected
Example
They live in a run-down house at the edge of town.
彼らは町の端にある荒れ果てた家に住んでいます。
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/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 adjective /rɪˈlʌktənt/

Reluctant

消極的な; ためらう; 何かをすることに抵抗がある;
Meaning
unwilling; hesitant; disinclined to do something;
Example
She was reluctant to share her personal information.
彼女は個人情報を共有することに消極的でした。
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 /ˈrɪb.ən/

ribbon

リボン
Meaning
a long, narrow strip of fabric used for tying or decoration
Example
She tied her hair with a red ribbon.
彼女は赤いリボンで髪を結びました。
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 /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 verb /ˌriːjuˈnaɪt/

reunite

再会する
Meaning
to bring together again after separation
Example
The family was reunited after many years.
その家族は何年も後に再会しました。
B2 verb /rɪp/

rip

裂ける
Meaning
to tear something quickly or violently
Example
He accidentally ripped his shirt on the fence.
彼はフェンスでシャツをうっかり裂けてしまいました。
B2 verb /ˈrendər/

render

提供する
Meaning
to provide or give; to make or cause to become
Example
The artist renders the scene beautifully.
アーティストはシーンを美しく表現します。
B2 noun ˈruθləs ˌkɑmpəˈtɪʃən

ruthless competition

容赦ない競争
Meaning
Fierce and merciless rivalry or contest, without pity or compassion.
Example
Ruthless competition for power leads to societal issues.
権力のための容赦ない競争は社会問題を引き起こします。
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 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 verb /rɪˈtriːt/

retreat

撤退する
Meaning
to move back or withdraw from a position or situation
Example
The soldiers had to retreat after losing the battle.
兵士たちは戦いに負けた後、撤退しなければならなかった。
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 /ˈrɛlɪvənsi/

relevancy

関連性
Meaning
the quality of being closely connected or appropriate
Example
The professor questioned the relevancy of the example to the topic.
教授はその例がトピックに関連しているかどうかを疑問視しました。
B2 noun /ˈreɪsɪzəm/

racism

人種差別
Meaning
the belief that some races are superior to others, leading to unfair treatment or prejudice
Example
The organization works to eliminate racism in all forms.
その組織はすべての形態の人種差別を排除するために取り組んでいます。
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 /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 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 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 /ˈreɪ.zər/

Razor

かみそり
Meaning
a sharp-edged instrument used for shaving hair from the skin
Example
He shaved his beard with a sharp razor.
彼は鋭いかみそりでひげを剃った。
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 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 ˌriːfɔːˈreɪʃən

reforestation

再植林
Meaning
The natural or intentional restocking of existing forests and woodlands that have been depleted.
Example
Reforestation efforts are crucial to restoring ecosystems.
再植林の努力は、生態系の回復に重要です。
B2 verb rɪˈstɔːr

restore

復元する
Meaning
To bring back to a former or original state; to reinstate.
Example
Restoring the tradition of student politics is necessary.
学生政治の伝統を復元することが必要です。
B2 noun /rɪˈbel.jən/

Rebellion

反乱
Meaning
an act of armed resistance to an established government or leader
Example
The rebellion against the king lasted for three years.
王に対する反乱は3年間続いた。
B2 verb /ˌriːəˈʃʊr/

reassure

安心させる
Meaning
to say or do something to remove someone's doubts or fears
Example
The teacher reassured the students before the exam.
教師は試験前に生徒を安心させました。
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 verb /ˌriːprəˈdjuːs/

reproduce

再生する, 繁殖する
Meaning
To make a copy of something; to generate offspring.
Example
Many animals reproduce rapidly in favorable conditions.
多くの動物は好ましい条件下で急速に繁殖します。
B2 noun /rɪˈlaɪ.əns/

Reliance

依存
Meaning
the state of depending on something or someone for support or help
Example
His reliance on technology is concerning.
技術への依存は懸念すべきことです。
B2 noun /ˈruːlɪŋ/

ruling

判決
Meaning
an official decision made by a judge or authority.
Example
The court’s ruling favored the defendant.
裁判所の判決は被告に有利でした。
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 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 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 verb /rɪˈvɜːrt/

revert

戻る
Meaning
to return to a previous state, condition, or practice
Example
The system will revert to its original settings after the update.
システムは更新後、元の設定に戻ります。
B2 verb /ˌriː.kənˈstrʌkt/

reconstruct

再建する
Meaning
to build or form something again after it has been damaged or destroyed
Example
The city was reconstructed after the earthquake.
その都市は地震後に再建されました。
B2 adjective /ˈrɪski/

risky

Meaning
Involving the possibility of danger, harm, or loss
Example
Investing in that startup is risky but could bring high rewards.
B2 noun /'ræd.ɪʃ/

Radish

ラディッシュ
Meaning
a small pungent edible root vegetable with white or red skin
Example
The farmer harvested fresh radishes from the garden.
農家は庭から新鮮なラディッシュを収穫しました。
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 ˌriːkənˈstrʌkʃn

reconstruction

再建
Meaning
The action or process of reconstructing or being reconstructed.
Example
The reconstruction project took years.
再建プロジェクトは数年かかりました。
B2 adjective /ˈreɪʃəl/

racial

人種の
Meaning
relating to a race of people
Example
Racial equality is an important issue in many societies.
人種平等は多くの社会において重要な問題です。
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 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 /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 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 noun /rɪˈmaɪndər/

reminder

リマインダー
Meaning
something that helps you remember a fact, event, or action that you need to do or recall
Example
He set a reminder to call his mother on her birthday.
彼は母親の誕生日に電話するためにリマインダーを設定しました。
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 /rɪˈfreʃ.mənt/

Refreshment

軽食
Meaning
food and drink that is served as a light meal; something that refreshes
Example
We served light refreshments after the meeting.
会議の後、軽食を提供しました。
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 verb /rɪˈkleɪm/

reclaim

Meaning
To take back or recover something; to restore to a usable state.
Example
The farmer worked to reclaim the barren land.
B2 noun /rʌʃ/

Rush

急ぎ; ラッシュ
Meaning
a sudden quick movement toward something; a period of great activity or demand; hurry
Example
There was a rush to buy tickets for the concert.
コンサートのチケットを買うために急いでいました。
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 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 noun /ˈruːstər/

rooster

雄鶏
Meaning
A male domestic chicken, especially one that crows.
Example
The rooster crowed at dawn, waking up the whole village.
雄鶏は夜明けに鳴き、村全体を起こした。
B2 noun /ˈrɪə.lɪ.zəm/

realism

リアリズム
Meaning
The quality of representing things as they are; a practical or factual view.
Example
Her paintings are admired for their realism.
彼女の絵画はそのリアリズムで賞賛されています。
B2 noun ˌreɪdɪˈeɪʃən

radiation

放射線
Meaning
The emission of energy as electromagnetic waves or as moving subatomic particles.
Example
Radiation from the sun can be harmful without protection.
太陽からの放射線は保護なしでは有害である可能性があります。
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 /rɪˈstreɪn/

restrain

抑制する
Meaning
to hold back or control; to limit or restrict
Example
Please restrain your dog.
犬を制御してください。
B2 adverb /ˈred.ɪ.li/

Readily

快く; 簡単に; ためらわずに
Meaning
willingly; easily; without hesitation
Example
She readily agreed to help with the project.
彼女は喜んでプロジェクトを手伝うことに同意した。