C2 verb /ˈfɛtər/

fetter

束缚，限制

Meaning

to restrain or restrict someone’s freedom

Example

The strict rules fettered the creativity of the students.

严格的规则限制了学生们的创造力。

C2 adjective /fluːˈɛnʃəl/

fluential

有影响力的

Meaning

Having the power to influence or flowing freely (rare/archaic usage).

Example

The fluential speaker captivated the entire audience.

有影响力的演讲者吸引了所有观众。

B1 noun /ˈfæn.si/

Fancy

幻想; 幻觉或想象

Meaning

a feeling of liking or wanting something; imagination or fantasy

Example

The child had a fancy for becoming a famous astronaut when he grew up.

孩子长大后希望成为一名著名的宇航员。

B2 adjective /ˈfɛmənɪn/

feminine

女性的

Meaning

having qualities traditionally associated with women; feminine in nature

Example

She has a very feminine style of dressing.

她有非常女性化的穿衣风格。

C1 adjective + noun ˈfeɪvərəbəl klaɪˈmætɪk kənˈdɪʃənz

favorable climatic conditions

有利的气候条件

Meaning

Weather conditions that are suitable and beneficial for growth or development

Example

Winter offers favorable climatic conditions for farming.

冬天为农业提供有利的气候条件。

B2 adjective /ˈfræntɪk/

frantic

疯狂的

Meaning

Extremely anxious, hurried, or out of control due to fear or excitement.

Example

She made a frantic call to her family after the accident.

事故发生后，她紧急给家人打了电话。

B2 noun /ˌfiː.ɑːnˈseɪ/

Fiancee

未婚妻

Meaning

a woman who is engaged to be married

Example

John bought a beautiful engagement ring for his fiancee.

约翰为他的未婚妻买了一枚漂亮的订婚戒指。

C1 noun/verb ˈfɒr.ɪdʒ

forage

饲料，寻找食物

Meaning

Food for horses and cattle, especially dried hay or feed; to search for food.

Example

Animals forage for food during the winter months.

动物们在冬季寻找食物。

C2 noun /ˈfɔːrˌpiːk/

forepeak

船头舱

Meaning

The compartment in the forward part of a ship, often used for storage.

Example

The sailors stored extra ropes in the forepeak.

水手们将额外的绳索存放在船头舱里。

A2 noun /ˈfɜːrnɪtʃər/

furniture

家具

Meaning

Objects such as chairs, tables, beds, or cupboards used to make a room suitable for living or working.

Example

The living room was filled with beautiful wooden furniture.

客厅里摆满了美丽的木制家具。

B2 noun /feɪt/

Fate

命运

Meaning

the development of events beyond a person's control, regarded as determined by a supernatural power

Example

Many people believe that fate determines the course of their lives.

许多人相信命运决定了他们生活的轨迹。

B2 noun /fɜːr/

Fur

毛发

Meaning

thick hair covering the body of animals

Example

The cat's fur was soft and warm to touch.

猫的毛发触感柔软而温暖。

C1 noun /fəˈsɑːd/

facade

外立面

Meaning

The front of a building; a false or superficial appearance

Example

The building's glass facade reflected the sunset.

建筑物的玻璃外立面反射了日落。

C1 adjective fæsˈtɪd.i.əs

fastidious

挑剔的，讲究细节的

Meaning

Very attentive to and concerned about accuracy and detail.

Example

She is fastidious about maintaining cleanliness.

她在保持清洁方面非常讲究。

C1 adjective /ˌfʊl ˈbɒd.id/

full-bodied

口感浓烈

Meaning

Having a strong, rich, and robust quality, especially of wine, coffee, or voice.

Example

He prefers a full-bodied red wine with his dinner.

他喜欢与晚餐搭配的口感浓烈的红酒。

C1 noun ˈfɜːr.vɚ

fervor

热情或热衷

Meaning

Strong passion or enthusiasm for something.

Example

He spoke with great fervor about his vision for the company.

他以极大的热情谈论他对公司未来的愿景。

C1 adjective /ˈfruː.ɡəl/

Frugal

节俭; 经济

Meaning

economical; thrifty;

Example

She is very frugal and saves money by buying only necessary items.

她非常节俭，通过只购买必要的物品来节省钱。

A2 adjective /fɔːls/

False

虚假; 错误; 欺骗性; 人造

Meaning

not true; incorrect; deceptive; artificial

Example

The witness gave false testimony in court.

证人给出了虚假的证词。

B2 verb /fɔɪl/

foil

挫败

Meaning

To prevent something (especially a plan) from succeeding.

Example

The police foiled the robbery attempt.

警方挫败了抢劫企图。

C1 noun /ˈfeɪvərɪtɪzəm/

favoritism

偏袒

Meaning

the practice of giving unfair preferential treatment to one person or group

Example

The manager was accused of favoritism towards certain employees.

经理被指控偏袒某些员工。

C2 adjective /ˈfʊl.səm/

fulsome

过度的赞美

Meaning

Excessively flattering or insincere; abundant or generous in amount.

Example

He offered fulsome praise to his boss.

他给老板提供了过度的赞美。

B2 adverb /ˌfʌndəˈmɛntəli/

fundamentally

从根本上

Meaning

in a basic and important way; at the core

Example

The two theories are fundamentally different.

这两个理论从根本上不同。

C1 noun /ˌfɪɡjʊˈriːn/

figurine

小型装饰雕像

Meaning

a small ornamental statue or model of a human or animal

Example

She bought a porcelain figurine of a dancing ballerina.

她买了一尊舞蹈芭蕾舞者的瓷雕像。

A2 adverb /ˈfaɪ.nəl.i/

Finally

终于

Meaning

at last; after a long time; in the end; as the last point

Example

After years of hard work, she finally achieved her goal.

经过多年的努力工作，她终于达成了自己的目标。

C1 noun /ˈfɔːrˌθɔːt/

forethought

预见

Meaning

careful consideration of what will be necessary or may happen in the future

Example

With a little forethought, we could have avoided the problem.

稍微有一点预见性，我们本可以避免这个问题。

C2 adjective /ˈfrɒlɪksəm/

Frolicsome

顽皮的; 快乐的; 活泼的

Meaning

joyful; playful; merry; cheerful

Example

The frolicsome children laughed and played in the park.

顽皮的孩子们在公园里笑着玩耍。

C1 noun, verb /fɔːrd/

ford

浅滩

Meaning

A shallow place in a river where one can cross; to cross a river at such a place.

Example

The travelers decided to ford the river at dawn.

旅行者决定在黎明时分穿越河流。

C2 adjective /ˈfraɪəbl/

friable

脆弱

Meaning

Easily crumbled or reduced to powder.

Example

The old brick wall was friable and broke apart at a touch.

那堵老砖墙是脆弱的，轻轻一碰就破裂了。

B1 noun /feɪθ/

Faith

信念; 信任; 宗教信仰;

Meaning

complete trust or confidence in someone or something; strong belief in religion

Example

She had unwavering faith in her team's ability to succeed.

她对她的团队成功的能力有着坚定不移的信念。

B2 verb, adjective /ˈfɒstər/

foster

培养

Meaning

to encourage the development of something; to raise a child that is not one's own

Example

The program aims to foster creativity in young students.

该计划旨在促进年轻学生的创造力。

B2 noun /ˈfleɪvər/

flavor

味道

Meaning

The distinctive taste of a food or drink.

Example

This ice cream has a delicious mango flavor.

这款冰淇淋有美味的芒果味。

B1 adverb /ˈfriːli/

Freely

自由地; 没有限制;

Meaning

without restriction; openly; willingly

Example

She spoke freely about her experiences during the interview.

她在面试中自由地谈论了她的经历。

C1 adverb /ˈfɪksɪdli/

Fixedly

专心地

Meaning

in a steady, unmoving manner; with intense concentration

Example

He stared fixedly at the painting.

他专心地盯着画作。

C1 noun /ˈfɒdər/

fodder

饲料

Meaning

food for livestock such as cattle, horses, or sheep; also something considered of little value but used to supply a demand

Example

The farmer stored enough fodder for the cattle to last through winter.

农民储存了足够的饲料，以便牲畜能度过冬天。

A1 noun /ˈfæməli/

family

家庭

Meaning

A group consisting of parents and their children, or all the descendants of a common ancestor.

Example

She spends most of her weekends with her family.

她把大部分周末时间都和家人一起度过。

A1 noun /fuːd/

food

食物

Meaning

any nutritious substance that people or animals eat or drink to maintain life and growth

Example

Rice is a common food in Asia.

米饭是亚洲常见的食物。

C1 verb /ˈflʌtər/

flutter

拍动 / 颤动

Meaning

to move or flap quickly and lightly; to beat or wave with small rapid motions

Example

The butterfly began to flutter its wings in the sunlight.

蝴蝶开始在阳光下扑动它的翅膀。

C1 verb /ˈflɪk.ər/

flicker

闪烁

Meaning

to shine unsteadily or waver between light and dark

Example

The candle flickered in the wind.

蜡烛在风中闪烁。

B2 adjective /ˌfjuːtʃəˈrɪstɪk/

futuristic

未来主义的

Meaning

Having or involving very modern technology or design that is advanced beyond what is currently available

Example

Futuristic technologies are transforming industries worldwide.

未来主义技术正在改变全球的行业。

C2 noun /ˈfʌstɪən/

fustian

浮夸的演讲

Meaning

pompous or pretentious speech or writing; originally a type of thick cloth

Example

The politician's speech was filled with fustian and empty promises.

政治家的演讲充满了浮夸和空洞的承诺。

C2 noun /fez/

Fez

费兹帽

Meaning

a cone-shaped red hat with a tassel, traditionally worn by men in some Middle Eastern countries

Example

The traditional costume included a red fez with a black tassel.

传统服饰包括一顶红色的费兹帽和一个黑色的流苏。

A1 verb /fiːl/

Feel

感受; 经历; 触摸

Meaning

to experience an emotion or physical sensation; to touch something

Example

I feel happy when I see my friends.

我看到我的朋友时感到很高兴。

C1 verb /ˈfɔːlsɪfaɪ/

falsify

伪造

Meaning

to make something false or to misrepresent

Example

He tried to falsify the documents to avoid taxes.

他试图伪造文件以避免税收。

C2 noun /ˈfɜːrðərəns/

furtherance

促进

Meaning

The advancement or promotion of something.

Example

The new policy was introduced in furtherance of social justice.

新政策是为了促进社会公正而引入的。

B2 verb /fraʊn/

frown

皱眉

Meaning

to wrinkle one's brow in displeasure or concentration

Example

She frowned when she heard the bad news.

她听到坏消息时皱起了眉头。

A2 noun /faɪl/

File

锉刀

Meaning

a tool with a rough surface for smoothing or shaping hard materials; a collection of papers or data

Example

He used a metal file to smooth the rough edges.

他使用了一把金属锉刀来平滑粗糙的边缘。

C1 noun /fɪˈnɛs/

finesse

精妙, 技巧, 高雅

Meaning

Subtlety and skill; refinement and delicacy in performance or artistry.

Example

The artist painted with great finesse.

艺术家以极高的精妙感画画。

A2 adjective /flæt/

flat

平坦

Meaning

Smooth and level, without raised areas or curves.

Example

The road ahead was completely flat.

前方的路完全是平坦的。

C1 adjective /ˈfleɪɡrənt/

flagrant

显眼且明显错误

Meaning

shockingly noticeable or evident; glaringly wrong

Example

It was a flagrant violation of the rules.

这是对规则的明显违反。

C1 noun /flʌks/

flux

流动

Meaning

continuous change or movement; the rate of flow of something

Example

The company was in a state of constant flux during the reorganization.

公司在重组期间处于持续变化的状态。

C2 adjective /ˈfʌŋɡəs/

fungous

像真菌一样

Meaning

relating to or resembling a fungus

Example

The damp basement had a fungous smell.

潮湿的地下室有一种像真菌一样的气味。

B2 noun /ˈfaɪbər/

fiber

纤维

Meaning

a thread or filament from which a textile is formed; dietary substance from plants that aids digestion

Example

Fruits and vegetables are high in fiber.

水果和蔬菜富含纤维。

B2 noun /ˈfɔːr.kæst/

Forecast

天气预报

Meaning

a prediction or estimate of future events, especially coming weather conditions

Example

The weather forecast predicted heavy rain for the entire weekend.

天气预报预测整个周末将有大雨。

B2 noun /ˈflɒrɪst/

florist

花店老板

Meaning

A person who sells and arranges flowers.

Example

We bought a bouquet from the local florist.

我们在当地的花店买了一个花束。

C1 noun /ˈfæk.ʃən/

Faction

派系

Meaning

a small organized dissenting group within a larger one

Example

Different factions within the party disagreed about the new policy.

党内的不同派系对新政策存在分歧。

B1 noun /feɪk/

Fake

伪造品; 欺诈; 假物品

Meaning

a thing that is not genuine; a forgery or sham

Example

The painting was discovered to be a fake worth very little money.

这幅画被发现是一幅伪造品，价值非常低。

A1 noun /fʌn/

fun

乐趣

Meaning

enjoyment, amusement, or light-hearted pleasure

Example

We had a lot of fun at the party.

我们在聚会上玩得很开心。

B2 noun fəˈtɪl.ɪ.ti

fertility

肥力

Meaning

The quality of being fertile; fruitfulness.

Example

Fertility of the soil is crucial for farming.

土壤的肥力对农业至关重要。

C1 noun /fɪˈnɑːleɪ/

finale

结尾

Meaning

the last part or conclusion of a performance, event, or series

Example

The concert ended with a spectacular finale.

音乐会以一个壮观的菲纳尔结束。

C1 adjective /ˈfiːbl/

feeble

虚弱, 软弱

Meaning

lacking physical strength or vigor; weak

Example

After the illness, she felt too feeble to stand.

生病后，她感到太虚弱无法站立。

C2 verb /fɔrˈswɛr/

forswear

放弃

Meaning

to renounce or reject; to give up completely

Example

He forswore his old habits and started a new life.

他放弃了旧习惯，开始了新的生活。

B2 adverb /ˈfɔːrmərli/

Formerly

以前; 从前

Meaning

in the past; previously; at an earlier time

Example

The building was formerly a school but is now a community center.

这座建筑以前是学校，但现在是一个社区中心。

B2 noun /fɔːrt/

Fort

堡垒

Meaning

a strong building or group of buildings where soldiers live and defend

Example

The ancient fort stood on top of the hill for centuries.

古老的堡垒屹立在山顶上数百年。

A2 adjective /ˈfaɪ.nəl/

Final

最后的; 决定性的; 终极的

Meaning

last; concluding; decisive; ultimate

Example

This is the final exam of the semester.

这是本学期的最终考试。

C2 noun /ˈfɔːrˌnɑːlɪdʒ/

foreknowledge

预知

Meaning

Awareness of something before it happens or exists.

Example

The prophet claimed to have foreknowledge of the event.

先知声称他预知了这个事件。

B2 noun /ˈfjuːʒən/

fusion

融合

Meaning

the process or result of joining two or more things together to form a single entity

Example

The restaurant offers a unique fusion of Asian and European cuisines.

餐厅提供独特的亚洲和欧洲美食融合。

C2 noun /ˈfɔːrˌseɪl/

foresail

前帆

Meaning

The principal sail set on the foremast of a sailing vessel.

Example

The crew adjusted the foresail to catch the wind.

船员调整了前帆来迎接风。

C1 noun /fjuːd/

feud

争吵, 仇恨

Meaning

a prolonged and bitter quarrel or conflict, often between families or groups

Example

The two families have been in a feud for generations.

这两个家庭已经世代争斗。

C1 adjective /frəˈnɛtɪk/

frenetic

狂乱的

Meaning

Fast and energetic in a wild or uncontrolled way.

Example

The stock market experienced frenetic trading after the announcement.

公告后股市经历了狂乱的交易。

B1 adverb /ˈfɜːrstli/

firstly

首先

Meaning

used to introduce the first point or reason in a discussion or argument

Example

Firstly, we need to address the budget issue before proceeding.

首先，我们需要在继续之前解决预算问题。

B2 adjective /fræŋk/

Frank

诚实的; 坦率的; 直率的; 真诚的

Meaning

honest; open; straightforward; candid

Example

She gave me a frank opinion about my presentation.

她对我的演讲给出了直率的意见。

C1 noun /ˈfɔːreɪ/

foray

突袭 / 初步尝试

Meaning

A sudden short attack or attempt, especially into new activity or territory.

Example

The company made its first foray into the international market.

公司首次进军国际市场。

C1 adjective /ˈfɔːrθˌraɪt/

forthright

直率

Meaning

Direct and honest in speech or behavior; straightforward.

Example

She was forthright in her criticism of the policy.

她在批评政策时非常直率。

C2 noun /ˈfæn.feər/

fanfare

盛大场面, 宣传

Meaning

a short ceremonial tune or display of publicity to attract attention

Example

The new product was launched with much fanfare.

新产品在盛大场面下发布。

B2 adjective /flɔːd/

flawed

有缺陷的

Meaning

having a mistake or fault that reduces its value or quality

Example

The flawed design of the car led to a recall.

汽车设计有缺陷，导致了召回。

C1 noun /ˈfaɪərɑːm/

firearm

火器

Meaning

a weapon capable of firing a projectile using gunpowder or other propellant

Example

The police found a hidden firearm during the investigation.

警方在调查过程中发现了一支隐藏的火器。

A1 adjective /ˈfeɪ.məs/

famous

著名

Meaning

Known about by many people; renowned.

Example

This area is famous for its unique heritage.

这个地区因其独特的遗产而著名。

C1 adverb /ˈfeɪ.təl.i/

Fatally

致命地

Meaning

in a way that causes death; with deadly consequences; critically

Example

The accident fatally injured two passengers.

事故致命地伤害了两名乘客。

C1 noun, verb /ˈfrænʧaɪz/

franchise

特许经营

Meaning

A legal right to sell or distribute goods or services in a specific area; to grant such a right.

Example

He opened a new fast-food franchise in the city.

他在城市里开设了一家新的快餐特许经营店。

C1 adjective /ˈfɪɡərətɪv/

figurative

比喻的

Meaning

not literal; using figures of speech or symbolic representation

Example

She used figurative language to describe her feelings.

她用比喻的语言来描述她的感受。

B1 noun /flæʃ/

Flash

闪光; 闪烁

Meaning

a sudden brief burst of bright light; a very brief moment

Example

There was a bright flash of lightning followed by thunder.

有一道明亮的闪电，接着是雷声。

B1 noun /fɒɡ/

Fog

雾

Meaning

a thick cloud of tiny water droplets suspended in the atmosphere at or near the earth's surface that reduces visibility

Example

Dense fog covered the highway this morning.

今天早晨，浓雾覆盖了高速公路。

C1 noun/adjective ˈflɛdʒ.lɪŋ

fledgling

初学者, 没有经验, 新成立的

Meaning

New, inexperienced, newly established.

Example

The fledgling startup needs investment.

这个新成立的公司需要投资。

C2 adjective /ˈfæl.oʊ/

fallow

休耕地

Meaning

Describing land that is left unplanted for a period to restore its fertility, allowing soil to recover nutrients and break pest and disease cycles.

Example

Farmers leave their fields fallow to restore soil fertility.

农民将土地休耕，以恢复土壤肥力。

C1 noun /ˈfɔːrɡraʊnd/

foreground

前景

Meaning

the part of a scene that is nearest to and in front of the viewer

Example

The flowers in the foreground brightened the picture.

前景的花朵使画面更加生动。

C2 noun /ˈfʌŋkʃəˌnɛri/

functionary

职员

Meaning

a person who has official duties in an organization, especially one with little authority

Example

The minor functionary was responsible for filing reports.

次要的职员负责提交报告。

森林

Meaning

a large area covered chiefly with trees and undergrowth

Example

We went hiking in the dense forest yesterday.

我们昨天在密林中徒步旅行。