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A1 verb /lɜːrn/

learn

学习
Meaning
to acquire knowledge or skills; to gain understanding
Example
Children learn quickly when they are interested.
孩子们在感兴趣时很快学习。
C2 noun /ˌlɪk.wəˈfeɪ.ʃənt/

liquefacient

液化剂
Meaning
a substance that causes something to become liquid
Example
The chemist explained how the liquefacient worked in the experiment.
化学家解释了液化剂在实验中的作用。
B2 noun /ˈlɪt.ər.ə.si/

Literacy

识字
Meaning
the ability to read and write; competence or knowledge in a specified area
Example
Adult literacy programs help people learn to read.
成人识字课程帮助人们学习阅读。
B2 noun /ˈlɪn.ən/

linen

麻布织物
Meaning
A strong cloth made from the fibers of the flax plant, or items made from this cloth such as sheets or clothing.
Example
She bought new linen curtains for the living room.
她为客厅买了新的麻布窗帘。
C1 noun /ˈlɛdʒɪsleɪtər/

legislator

立法者
Meaning
a person who makes laws, especially a member of a legislative body
Example
The legislator introduced a bill to improve healthcare.
立法者提出了一项改善医疗保健的法案。
B2 noun /ˈlɒbi/

lobby

大堂
Meaning
a large open area near the entrance of a building; also a group trying to influence decisions.
Example
We met the manager in the hotel lobby before the meeting.
我们在会议前在酒店的大堂见到了经理。
B2 noun /ˈlaɪ.nər/

liner

Meaning
A large ship used for transporting people or goods regularly, or a material used as a lining inside something.
Example
The luxury liner docked at the port yesterday.
A1 pronoun/noun /lɒts/

lots

很多
Meaning
A large number or amount of something.
Example
She has lots of friends in the city.
她在城市里有很多朋友。
C1 noun /ˈlʌɡ.ɪdʒ væn/

Luggage van

行李车
Meaning
a vehicle designed for carrying luggage and cargo
Example
The luggage van carried all the passengers' suitcases.
行李车载着所有乘客的行李箱。
B2 noun /ˈlaɪnˌʌp/

lineup

阵容
Meaning
a group of people or things arranged in a sequence
Example
The event featured a star-studded lineup of musicians.
这个活动展示了一个明星云集的阵容。
A1 verb /liːv/

leave

离开
Meaning
to go away from; to depart or exit
Example
The train leaves at 6 PM.
火车在下午6点离开。
C1 adjective /ˈlækˌlʌstər/

lackluster

黯淡无光
Meaning
Lacking in vitality, force, or conviction; uninspired or uninspiring.
Example
The lackluster performance disappointed the audience.
黯淡无光的表现让观众失望。
B2 noun /ˈlɒdʒɪk/

logic

逻辑
Meaning
Reasoning conducted or assessed according to strict principles of validity.
Example
Her argument was based on sound logic.
她的论点基于严密的逻辑。
C1 noun /liːtʃ/

Leech

水蛭
Meaning
an aquatic or terrestrial annelid worm with suckers at both ends; metaphorically, a person who extorts profit from others
Example
The leech attached itself to his leg while swimming.
水蛭在他游泳时附着在他的腿上。
C2 noun /ˈliːdʒənəri/

legionary

罗马士兵
Meaning
a soldier in the Roman army
Example
Each legionary carried a shield and a short sword.
每个军团士兵都带着盾牌和一把短剑。
C1 noun /læps/

Lapse

暂时失误; 错误;
Meaning
a temporary failure of concentration, memory, or judgment; the termination of a right or privilege
Example
There was a brief lapse in security that allowed the intruder to enter the building.
安全中出现了短暂的失误，导致入侵者能够进入大楼。
A2 noun ˈliːdər

leader

领导者
Meaning
A person who leads or commands a group, organization, or country.
Example
The leader inspired people.
领导者激励了人们。
C2 adjective /ˌlɪlɪˈpjuːʃən/

lilliputian

极小的
Meaning
Extremely small or tiny; trivial or petty.
Example
The model village was filled with lilliputian houses.
模范村庄里充满了极小的房屋。
A2 noun /ˈləʊɡəʊ/

logo

Meaning
a symbol or other small design adopted by an organization to identify its products, uniform, vehicles, etc.
Example
The company's logo was redesigned to reflect its new image.
C2 verb /ˈlæs.ə.reɪt/

lacerate

割裂，撕裂
Meaning
to tear or cut deeply in the skin or flesh
Example
The broken glass lacerated his hand.
破碎的玻璃割伤了他的手。
B1 noun /ˈlʌvər/

lover

情人
Meaning
a person who is in a romantic relationship or has strong affection for someone
Example
She met her lover at the café every evening.
她每天晚上都在咖啡馆与她的情人见面。
C1 adjective /ˈlɔː.ləs/

Lawless

无律; 无政府主义; 混乱; 犯罪
Meaning
without law; anarchic; unruly; criminal
Example
The frontier town was known for its lawless behavior and chaos.
边境城市以其无律行为和混乱而闻名。
B1 noun /ˈlæbrətɔːri/

laboratory

实验室
Meaning
A room or building equipped for scientific experiments, research, or teaching.
Example
The students conducted the experiment in the chemistry laboratory.
学生们在化学实验室进行了实验。
C2 adjective ˌlæb.əˈrɪn.θaɪn

labyrinthine

迷宫似的
Meaning
Like a labyrinth; complicated and confusing; having many interconnected paths or passages.
Example
The old city streets were labyrinthine.
老城区的街道像迷宫一样。
C1 verb /ˈlɪŋɡər/

linger

停留比需要的时间更长
Meaning
to stay in a place longer than necessary; to persist
Example
The smell of coffee lingered in the kitchen.
咖啡的味道在厨房里停留了更长时间。
B2 adjective /ˈlɪtərɛri/

literary

文学的
Meaning
concerning the writing, study, or content of literature
Example
She is a well-known figure in the literary world.
她是文学界的知名人物。
C1 verb /luːt/

loot

掠夺
Meaning
to steal goods, typically during war, riot, or chaos
Example
The rioters looted several shops during the protest.
抗议者在抗议期间掠夺了几家商店。
C2 noun /luːn/

lune

新月
Meaning
A crescent-shaped figure formed by two intersecting arcs; also means 'moon' in French.
Example
The mathematician studied the properties of the lune.
数学家研究了新月的特性。
C1 noun /ˌlɪbəˈreɪʃən wɔːr/

liberation war

解放战争
Meaning
a war fought to gain freedom from foreign rule, occupation, or oppression; an armed struggle for national independence
Example
The liberation war reshaped the nation’s history and identity.
解放战争改变了国家的历史和认同。
B1 verb /lend/

lend

借出
Meaning
to give temporarily; to allow someone to use something
Example
Can you lend me your pen?
你能借给我你的钢笔吗？
B2 noun /ˈlen.tɪl/

Lentil

小扁豆
Meaning
a high-protein pulse which is dried and then soaked and cooked prior to eating
Example
She cooked red lentils for dinner tonight.
她今晚做了红扁豆作为晚餐。
C2 adjective /ˈlaɪbələs/

libelous

诽谤的
Meaning
containing or constituting a false published statement that damages a person's reputation
Example
The article was found to be libelous and had to be retracted.
该文章被认为是诽谤的，必须撤回。
C1 noun /lɒft/

loft

阁楼
Meaning
An upper room or space, often under the roof of a building.
Example
She converted the old loft into a modern studio.
她把旧阁楼改造成了一个现代化的工作室。
B1 adjective /ˈlaɪv.li/

Lively

充满活力的; 活泼的; 快乐的
Meaning
full of life and energy; animated; cheerful
Example
The children had a lively discussion about their favorite books.
孩子们就他们最喜欢的书进行了充满活力的讨论。
A1 adjective, noun, adverb, verb (past tense of leave) /lɛft/

left

左
Meaning
on or towards the side of the body that is to the west when facing north
Example
He turned left at the intersection.
他在交叉口左转。
A1 noun, verb /laɪn/

line

线
Meaning
A long narrow mark or band; a row of people or things; to cover the inside surface of something.
Example
People waited in a long line outside the theater.
人们在剧院外排着长队等候。
C2 noun /ˌlɪt.əˈrɑː.ti/

literati

文学家
Meaning
well-educated, literary, or scholarly people
Example
The event was attended by poets, critics, and other members of the literati.
该活动由诗人、评论家和其他文学家参加。
B2 noun /ˈlænd.fɪl/

landfill

垃圾填埋场
Meaning
a site where waste material is buried under the ground
Example
The city built a new landfill to manage its growing waste problem.
这个城市建造了一个新的垃圾填埋场，以应对日益增长的废物问题。
C2 adjective /luːˈɡuːbriəs/

lugubrious

阴沉的
Meaning
looking or sounding sad and dismal
Example
His lugubrious expression made everyone feel uneasy.
他那阴沉的表情让大家感到不安。
C1 noun /ˈlæd.i/

laddie

小男孩
Meaning
A young boy or lad.
Example
The old man gave the young laddie a kind smile.
老人给年轻的小男孩一个友好的微笑。
C2 noun /laʊt/

lout

粗人
Meaning
An uncouth or aggressive man or boy.
Example
The drunken lout caused a scene at the party.
那个醉酒的粗人把派对弄得一团糟。
C1 noun /ˈlɛk.sɪ.kɒn/

lexicon

词汇
Meaning
The vocabulary of a person, language, or branch of knowledge; a collection of words and terms.
Example
A translator must have a vast lexicon of both languages.
翻译人员必须掌握两种语言的广泛词汇。
B2 noun ˈlɒŋ tɜːm ˈmɛm.ər.i

Long-term memory

长期记忆
Meaning
Such memory that remains stored in the brain for a long time
Example
Repeated practice helps transfer information into long-term memory.
重复练习有助于将信息转移到长期记忆中。
B2 adjective; verb (past and past participle) /lɜːrnd/

learned

博学的
Meaning
having acquired much knowledge through study; gained knowledge or skill through experience or teaching
Example
She is a learned scholar with deep knowledge of history.
她是一位对历史有深厚了解的博学学者。
C2 noun /ˈlæɡ.ərd/

Laggard

进展缓慢并落后于其他人的人
Meaning
a person who makes slow progress and falls behind others; someone who is slow to act
Example
The laggard student finally submitted his assignment after the deadline.
那位落后的学生终于在截止日期后提交了作业。
C1 noun /ˈlaɪtʃi/

Litchi

荔枝
Meaning
a small oval pink-red tropical fruit with white translucent flesh and sweet taste
Example
The litchi has a rough pink shell that you peel to eat the sweet white fruit inside.
荔枝有一层粗糙的粉红色外皮，你剥开它就可以吃到里面甜美的白色果实。
C2 adjective /ˈlɪəri/

leery

怀疑的
Meaning
Cautious or wary due to suspicion or distrust.
Example
She was leery of investing in the new business.
她对投资新业务感到怀疑。
A1 adjective/adverb /leɪt/

late

迟到
Meaning
arriving, happening, or done after the expected time
Example
He arrived late to the meeting.
他迟到了会议。
B1 noun /ˈleɪ.bəl/

Label

标签
Meaning
a small piece of paper or material attached to something to identify or describe it
Example
Please read the label carefully before taking any medication.
请在服用任何药物之前仔细阅读标签。
C2 verb /lɔːd/

laud

Meaning
To praise someone or something highly, especially in public.
Example
The critic lauded the actor's performance as a masterpiece.
C1 adjective /ˈliː.θəl/

Lethal

致命的; 致死的;
Meaning
deadly; fatal; capable of causing death
Example
The snake's venom is lethal to humans if not treated immediately.
蛇的毒液对人类致命，如果不立即治疗。
A1 noun /laɪf/

life

生命
Meaning
The existence of an individual human being or animal.
Example
Life is full of challenges and opportunities.
生命充满了挑战和机会。
A1 verb /laɪk/

like

喜欢
Meaning
to enjoy or find something pleasant; to have a preference for
Example
I like reading books in my free time.
我喜欢在空闲时间读书。
C1 noun /lʌmp/

Lump

块; 团; 块状物
Meaning
a compact mass of a substance, especially one without a definite or regular shape
Example
She found a lump of sugar in the bowl.
她在碗里发现了一块糖。
A1 noun

Love

爱
C2 adjective /ˈlɪmbər/

limber

灵活和敏捷
Meaning
Flexible and agile in body or movement.
Example
Dancers need to stay limber to perform well.
舞者需要保持灵活才能表现好。
C1 noun /ˌloʊkəˈmoʊʃən/

locomotion

运动
Meaning
movement or the ability to move from one place to another
Example
Walking is the most common form of human locomotion.
走路是人类最常见的运动方式。
B1 adverb /ˈlɑːrdʒli/

largely

主要
Meaning
to a great extent; mostly or mainly
Example
The success of the project was largely due to teamwork.
这个项目的成功主要归功于团队合作。
A2 noun /leŋθ/

Length

长度
Meaning
the measurement or extent of something from end to end; the greater of two or the greatest of three dimensions
Example
The length of the table is two meters.
桌子的长度是两米。
B1 noun, verb /ˈlaɪsəns/

license

许可证 / 许可
Meaning
A legal permission to do something (noun); to grant such permission (verb).
Example
You must have a driving license to operate a car legally.
您必须拥有驾驶执照才能合法开车。
B2 noun /ˈlep.ərd/

Leopard

美洲豹
Meaning
a large wild cat with yellow fur and black spots
Example
The leopard climbed the tree to rest in the shade.
美洲豹爬上了树，在阴凉处休息。
C2 adjective /ˈlæk.rɪ.moʊs/

lachrymose

流泪的，悲伤的
Meaning
tearful or given to weeping; sad and mournful
Example
The movie's lachrymose ending left the audience in tears.
电影的悲伤结局让观众泪流满面。
C1 adjective /ˈlɪvɪd/

livid

愤怒的
Meaning
Extremely angry; furious.
Example
She was livid when she found out about the betrayal.
当她发现背叛时，她愤怒不已。
C1 noun /ləˈɡuːn/

lagoon

湖泊
Meaning
A shallow body of water separated from the sea by sandbars or reefs.
Example
We swam in the calm waters of the lagoon.
我们在湖泊的平静水域游泳。
C2 noun /ˈlɪɡ.ə.tʃər/

ligature

连字
Meaning
A thing used for tying or binding tightly; in music/printing, two or more notes or letters joined together.
Example
The doctor used a ligature to stop the bleeding.
医生使用了连字来停止出血。
B2 noun /ˈleɪzər/

laser

激光
Meaning
a device that emits a concentrated beam of light
Example
The doctor used a laser to perform eye surgery.
医生使用激光进行眼部手术。
C2 verb /leɪv/

lave

洗
Meaning
To wash or bathe.
Example
She laved her face with cool water.
她用冷水洗了脸。
C1 noun /lɪˈɡæl.ə.ti/

Legality

合法性
Meaning
the quality or state of being legal; accordance with the law
Example
The lawyer questioned the legality of the contract.
律师质疑合同的合法性。
C1 noun /ˈlɪbərəlɪzəm/

liberalism

自由主义
Meaning
a political and social philosophy advocating individual freedoms, democracy, and equality
Example
Liberalism emphasizes freedom of speech and human rights.
自由主义强调言论自由和人权。
A2 noun /ˈlaɪ.ən/

Lion

狮子
Meaning
a large tawny-colored cat that lives in prides, found in Africa and northwestern India
Example
The lion roared loudly in the savanna.
狮子在大草原上大声咆哮。
B2 noun /ˈlɛtɪs/

lettuce

生菜
Meaning
a leafy green vegetable commonly used in salads and sandwiches
Example
She added fresh lettuce to the sandwich.
她在三明治里加了新鲜的生菜。
A2 adjective /ˈlʌv.li/

Lovely

美丽的；迷人的；愉快的；吸引人的
Meaning
beautiful; charming; delightful; attractive
Example
What a lovely day for a picnic!
什么美好的一天适合野餐！
C1 verb /lʊər/

lure

诱惑
Meaning
to attract or tempt someone, often by offering something appealing
Example
The advertisement lured customers with promises of discounts.
广告通过承诺折扣诱使顾客。
C2 noun /liːən/

lien

留置权
Meaning
A legal right to keep possession of property until a debt is paid.
Example
The bank placed a lien on the house until the mortgage was cleared.
银行对房屋施加了留置权，直到抵押贷款清偿完毕。
B2 adjective /ˈlaɪf.lɒŋ/

lifelong

终生
Meaning
Lasting or existing for the whole of a person's life.
Example
They remained lifelong friends.
他们是终生的朋友。
B1 noun /ˈlaɪtɪŋ/

lighting

照明
Meaning
the arrangement or use of light in a place; the act of providing light
Example
The lighting in the restaurant created a warm and cozy atmosphere.
餐厅的灯光创造了温暖而舒适的氛围。
C1 noun /ˈlaɪk.nəs/

Likeness

相似; 类似
Meaning
the fact or quality of being alike; resemblance; a portrait or representation
Example
The portrait shows a strong likeness to her grandmother.
这幅肖像与她的祖母有很强的相似之处。
C1 adjective /lʌʃ/

lush

富饶，丰盈且奢华，尤其是指植物
Meaning
rich, abundant, and luxurious, especially referring to vegetation
Example
The valley was filled with lush green fields.
山谷里充满了绿油油的田野。
C2 adjective /ˌlɛvəlˈhɛdɪd/

levelheaded

冷静和理智
Meaning
calm and sensible; showing good judgment.
Example
She remained levelheaded during the crisis.
她在危机中保持冷静。
B1 noun /lenz/

lens

镜头
Meaning
a curved piece of glass or plastic that makes things look clearer or larger when you look through it
Example
He cleaned the camera lens before taking the picture.
他在拍照前清洁了相机镜头。
C2 verb /læmˈbeɪst/

lambaste

严厉批评
Meaning
to criticize someone or something harshly; to reprimand severely
Example
The teacher lambasted the students for not completing their homework.
老师因学生未完成作业而严厉批评了他们。
B2 noun, verb /laʊndʒ/

lounge

休息室
Meaning
A public room for relaxing; or to sit, lie, or stand in a relaxed way.
Example
They lounged on the sofa after dinner.
他们在晚餐后懒洋洋地躺在沙发上。
B1 noun /ˈlek.tʃər/

Lecture

讲座
Meaning
an educational talk to an audience, especially to students in a university or college
Example
The professor gave an interesting lecture on history.
教授做了一个有趣的历史讲座。
B1 noun /ˈlaɪ.kɪŋ/

Liking

喜好; 爱好; 偏爱
Meaning
a feeling of regard or fondness; a preference or taste for something
Example
She has developed a liking for classical music.
她对古典音乐产生了喜好。
B1 noun /loʊn/

Loan

贷款
Meaning
a thing that is borrowed, especially a sum of money that is expected to be paid back with interest
Example
He took a loan to buy a new car.
他为了买新车而借了一笔贷款。
C2 noun /lɒx/ or /lɒk/

lough

湖泊
Meaning
An Irish or Scottish word for a lake or sea inlet.
Example
The fishermen lived by the lough for generations.
渔民们世世代代住在湖泊旁边。
C1 noun /ˈlɪŋɡwɪst/

linguist

语言学家
Meaning
A person skilled in foreign languages or in the scientific study of language.
Example
She is a linguist who speaks six languages fluently.
她是一位能流利讲六种语言的语言学家。
C2 noun /liːdʒ/

liege

领主
Meaning
A feudal lord entitled to allegiance and service; a loyal subject.
Example
The knight pledged loyalty to his liege.
骑士向他的领主宣誓效忠。
B2 adjective /ˈlaɪ.ə.bəl/

Liable

负责的; 有义务的;
Meaning
legally responsible; accountable; obligated
Example
The company is liable for any damages caused by their defective products.
公司对因其有缺陷的产品造成的任何损害负责。
C1 verb /ˈluːbrɪkeɪt/

lubricate

润滑
Meaning
to apply oil or grease to reduce friction between surfaces
Example
The mechanic lubricated the car engine parts.
机械师为汽车发动机部件上了润滑油。
C1 noun /liˈeɪzɒn/

liaison

联络人
Meaning
communication or cooperation between people or groups for a smooth working relationship
Example
She works as a liaison between the company and its clients.
她在公司与客户之间担任联络人。
A2 noun /ˈlɜːrnər/

learner

学习者
Meaning
a person who is acquiring knowledge or skill through study or experience
Example
She is a fast learner.
她学得很快。
C2 noun /ˌlɛksɪˈkɒɡrəfi/

lexicography

词典编纂学
Meaning
The art or practice of compiling dictionaries.
Example
Lexicography requires both linguistic and cultural knowledge.
词典编纂学需要语言学和文化知识。
C2 noun /ˌlaɪ.pəˈdʒen.ɪ.sɪs/

lipogenesis

脂肪生成
Meaning
The metabolic process of fat synthesis where excess carbohydrates are converted into fatty acids and stored as triglycerides.
Example
Excess carbohydrate intake promotes lipogenesis and fat storage.
过多的碳水化合物摄入促进了脂肪生成和脂肪储存。
B2 noun /ˈlaɪ.səns/

Licence

许可证
Meaning
a permit from an authority to own or use something, do a particular thing, or carry on a trade
Example
You need a driving licence to operate a car.
你需要驾驶执照才能驾驶汽车。
C2 noun /ˈlɑːrsəni/

larceny

盗窃
Meaning
The unlawful taking of personal property with intent to deprive the rightful owner of it.
Example
He was arrested for committing larceny at the store.
他因在商店犯盗窃罪被逮捕。
B2 noun /ˈlaɪ.kli.hʊd/

likelihood

可能性
Meaning
the chance or probability of something happening
Example
There is a strong likelihood of rain tomorrow.
明天有很大的降雨可能性。
C2 noun /loʊm/

loam

富饶的壤土
Meaning
Fertile soil mixture of sand, clay, and organic matter.
Example
Loam soil is ideal for agriculture due to its nutrient content.
壤土是农业的理想选择，因为它含有丰富的营养成分。
C2 adjective /ˈlæmbənt/

lambent

柔和的发光
Meaning
glowing or flickering softly; having a gentle radiance
Example
The lambent light of the candle filled the room with warmth.
蜡烛的柔和光线充满了房间的温暖。
B2 noun /ˈleɪ.zi.nəs/

Laziness

懒惰
Meaning
the quality of being unwilling to work or use energy; idleness
Example
His laziness prevented him from achieving his goals.
他的懒惰阻止了他实现目标。
C1 verb /ˈlɪtɪˌɡeɪt/

litigate

诉讼
Meaning
to engage in legal proceedings or take a dispute to court
Example
The company decided to litigate the contract dispute.
公司决定就合同争议提起诉讼。
B2 noun /ˈleɪbərər/

laborer

工人
Meaning
a person who does physical work, especially work that requires strength rather than skill
Example
The laborer worked long hours at the construction site.
这名工人在建筑工地长时间工作。
B2 noun /ˈledʒ.ənd/

Legend

传说; 神话
Meaning
a traditional story sometimes popularly regarded as historical but unauthenticated; an extremely famous or notorious person
Example
The legend of King Arthur has inspired many books.
亚瑟王的传奇激发了许多书籍。
C2 noun /loʊd/

lode

矿脉
Meaning
A rich source of something, often a vein of valuable metal in the earth.
Example
The miners discovered a rich lode of silver.
矿工发现了一个丰富的银矿脉。
C2 noun /ˈlɒkətɪv/

locative

方位格
Meaning
a grammatical case indicating location or place
Example
In Latin, the locative case is used to indicate location.
在拉丁语中，方位格用于表示位置。
C1 noun /ˈlɪrɪk/

lyric

歌词
Meaning
the words of a song or a short poem that expresses personal feelings
Example
She memorized every lyric of her favorite song.
她记住了她最喜欢的歌曲的每一首歌词。
B2 noun /ˈlaɪ.ə.nəs/

Lioness

母狮
Meaning
an adult female lion
Example
The fierce lioness protected her cubs from danger.
那只凶猛的母狮保护着她的小狮子免受危险。
C1 verb ˈlæŋ.ɡwɪʃ

languish

衰退或萎缩
Meaning
To remain in a state of neglect or decline for a long time without improvement.
Example
The project began to languish due to a lack of funding.
该项目因缺乏资金而开始衰退。
C2 adverb/adjective /lɪˈɡɑːtoʊ/

legato

在音乐中，平滑且连贯地演奏或歌唱
Meaning
In music, played or sung smoothly and connectedly.
Example
The pianist played the passage legato, with each note flowing into the next.
钢琴家以连贯的方式演奏了这段乐句，每个音符都流畅地过渡到下一个。
B2 noun ˈlaɪf ɪkˌspek.tən.si

life expectancy

预期寿命
Meaning
The average period that a person may expect to live; the length of time for which something is expected to last or to continue being effective.
Example
Life expectancy depends on healthcare quality.
预期寿命取决于医疗保健质量。
C1 noun /ˈleθ.ər.dʒi/

Lethargy

昏睡; 疲劳和不活跃
Meaning
a lack of energy and enthusiasm; tiredness and inactivity
Example
The hot weather caused a feeling of lethargy.
炎热的天气引发了昏睡的感觉。
B2 adjective /ˈlɪtərəl/

literal

字面
Meaning
taking words in their usual or most basic sense without metaphor or exaggeration
Example
His comment was meant as a joke, not to be taken in a literal sense.
他的评论是开玩笑的，不应当按字面意思理解。
C2 noun /ˈlɪŋ.ɡoʊ/

lingo

专业术语
Meaning
Specialized or informal language used by a particular group that is often difficult for outsiders to understand.
Example
The manual was written in technical lingo that confused the new employees.
手册是用技术术语写的，让新员工感到困惑。
C1 adjective /loʊθ/

loath

不情愿
Meaning
reluctant or unwilling to do something
Example
She was loath to admit her mistake in front of everyone.
她不愿意在大家面前承认她的错误。
B2 noun /ˈlænd.ɪŋ/

Landing

着陆
Meaning
the action of coming to rest on the ground or another surface; a level area at the top of a staircase
Example
The pilot made a smooth landing despite the stormy weather conditions.
飞行员尽管遇到风暴天气条件，但顺利着陆。
B1 adjective /ˌlɛftˈhændɪd/

left-handed

左撇子
Meaning
Using or done with the left hand; also can mean clumsy or awkward.
Example
She is left-handed and writes beautifully with her left hand.
她是左撇子，左手写字非常漂亮。
C1 noun /ˈlaɪbəl/

libel

诽谤
Meaning
a published false statement that damages a person's reputation
Example
The newspaper was sued for libel after publishing false claims.
报纸因发布虚假声明而被起诉诽谤。
C2 noun /ˈluːkər/

lucre

利润
Meaning
money, especially when regarded as sordid or gained dishonorably
Example
He was motivated more by lucre than by duty.
他更多的是由利润而不是责任驱动。
B2 noun /ˈliːf.lət/

Leaflet

传单; 宣传单
Meaning
a printed sheet of paper containing information or advertising and usually distributed free
Example
She handed out leaflets about the environmental campaign.
她分发了有关环保运动的传单。
C1 noun /ˈloʊ.kəst/

Locust

蝗虫
Meaning
a large insect that flies in groups and eats crops
Example
The locusts destroyed the entire wheat field.
蝗虫摧毁了整个小麦田。
C2 noun /ˈlaɪtoʊtiːz/

litotes

委婉语
Meaning
a figure of speech in which an affirmative is expressed by the negative of its contrary
Example
Saying 'not bad' as a compliment is an example of litotes.
说‘不坏’作为赞美是委婉语的一个例子。