ligament
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C1 noun /ˈlɪɡ.əmənt/

ligament

韧带组织
Meaning
A tough band of tissue that connects bones at a joint.
Example
He tore a ligament in his knee while playing football.
他在踢足球时撕裂了膝盖的韧带。
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。
C1 noun /ˈlænd.slaɪd/

Landslide

山体滑坡
Meaning
a collapse of a mass of earth or rock from a mountain or cliff; an overwhelming victory in an election
Example
Heavy rains triggered a massive landslide that blocked the mountain highway.
暴雨引发了一场巨大的山体滑坡，堵塞了山路。
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。
C1 noun /lɪŋˈɡwɪstɪks/

linguistics

语言学
Meaning
The scientific study of language and its structure.
Example
She decided to major in linguistics at university.
她决定在大学里攻读语言学。
C1 noun /ˈlaɪm.stoʊn/

Lime stone

石灰岩
Meaning
a hard sedimentary rock, composed mainly of calcium carbonate or dolomite, used as building material and in the making of cement
Example
The ancient building was made of limestone blocks.
这座古老的建筑是用石灰岩块建造的
C1 noun /ˌlɛ.seɪ ˈfɛər/

laissez-faire

不干预政策
Meaning
An economic policy where government does not intervene in business affairs.
Example
Laissez-faire policies encourage private enterprise.
不干预政策鼓励私人企业。
C1 noun /ˈlɛɡɪŋ/

legging

紧身裤
Meaning
tight-fitting stretch pants, typically worn by women for exercise or casual wear
Example
She bought a new pair of black leggings for the gym.
她为健身房买了一条新的黑色紧身裤。
C1 noun /ˈlɪmboʊ/

limbo

不确定，悬而未决的状态
Meaning
A state of uncertainty or neglect; an intermediate or transitional state.
Example
The project was left in limbo after the funding was withdrawn.
该项目在资金撤回后陷入了不确定状态。
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。
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。
C1 noun /lʌst/

Lust

非常强烈的性欲；强烈的渴望某物
Meaning
very strong sexual desire; a passionate desire for something
Example
His lust for power corrupted him completely.
他对权力的欲望完全腐蚀了他。
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 /ˈliː.ni.ənt/

Lenient

宽容的; 宽大的; 仁慈的; 在处罚或判断中不严格
Meaning
tolerant; forgiving; merciful; not strict in punishment or judgment
Example
The teacher was lenient with students who submitted their homework late.
老师对那些迟交作业的学生宽容。
C1 noun /ˌloʊ.kəˈmoʊ.tɪv/

locomotive

机车
Meaning
A powered rail vehicle used for pulling trains.
Example
The old steam locomotive was restored for the museum.
这辆老式蒸汽机车已恢复供博物馆使用。
C1 adjective /ˈloʊli/

lowly

谦逊
Meaning
humble in status, position, or manner
Example
She rose from a lowly position to become the company's CEO.
她从一个低位上升成为了公司的首席执行官。
C1 noun /ˈleɪˌpɜːrsən/

layperson

外行人
Meaning
A person who is not a member of the clergy or does not have specialized knowledge in a subject.
Example
The judge explained the law so that the layperson could understand.
法官解释了法律，使外行人也能理解。
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 verb, noun /lɜːrtʃ/

lurch

Meaning
to make an abrupt, unsteady, or uncontrolled movement; a sudden movement or stagger
Example
The bus lurched forward as the driver hit the brakes.
C1 noun /ˈlʌstər/

luster

光泽
Meaning
a gentle sheen or soft glow, especially from a polished surface
Example
The diamond had a brilliant luster.
钻石有着耀眼的光泽。
C1 adjective /ˈluː.mɪ.nəs/

Luminous

光亮的; 发光的; 明亮的
Meaning
bright; shining; emitting light; radiant
Example
The luminous stars filled the dark night sky.
明亮的星星照亮了黑暗的夜空。
C1 noun /ˈleɪ.mən/

Layman

外行人; 没有专业知识的人
Meaning
a person without professional or specialized knowledge in a particular subject
Example
The doctor explained the procedure in layman's terms.
医生用通俗的语言解释了这个程序。
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。
C1 noun ˈlaɪv.li.hʊd

livelihood

生计
Meaning
A means of securing the necessities of life; a way of making a living.
Example
Fishing is the primary livelihood of coastal communities.
捕鱼是沿海社区的主要生计。
C1 noun lɪˈkwɪd.ə.ti

liquidity

流动性
Meaning
The availability of liquid assets to a market or company; the ability to convert assets into cash quickly.
Example
Maintaining liquidity is crucial for financial stability.
维持流动性对财务稳定至关重要。
C1 verb /ˈlæmɪˌneɪt/

laminate

覆膜
Meaning
to cover or enclose something with a protective layer, usually plastic
Example
She laminated her important documents to protect them from damage.
她把重要的文件进行了塑料封面处理，以保护它们免受损坏。
C1 noun /luːm/

Loom

织布机
Meaning
a machine for weaving cloth; to appear threatening or menacing
Example
The weaver worked at the loom to create beautiful fabrics.
织工在织布机上工作，创造美丽的面料。
C1 noun /ˈloʊ.fər/

Loafer

懒人，避免工作或努力的人
Meaning
a person who avoids work or effort; an idler
Example
Don't be a loafer, help us with the work.
不要做洛费尔，帮我们做工作。
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。
C1 adverb /ˈleŋθ.waɪz/

Lengthwise

沿长度方向; 沿最长的维度
Meaning
in the direction of the length; along the longest dimension
Example
Fold the paper lengthwise to make it easier to carry.
沿着长度将纸张对折，这样便于携带。
C1 noun /ˈliːweɪ/

leeway

回旋余地
Meaning
Freedom to act within certain limits; extra space or time.
Example
The manager gave the team some leeway to finish the project.
经理给了团队一些回旋余地来完成项目。
C1 adjective /ˈliːf.ləs/

Leafless

无叶的; 光秃的
Meaning
without leaves; bare
Example
The leafless trees looked bare in winter.
冬天无叶的树看起来光秃秃的。
C1 noun, adjective /ˈlæksətɪv/

laxative

泻药
Meaning
A medicine or substance that stimulates bowel movements; tending to loosen or relieve constipation.
Example
The doctor prescribed a mild laxative for her condition.
医生为她的病情开了轻度泻药。
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。
C1 verb /lʌl/

lull

安抚
Meaning
to soothe or calm; to cause to sleep or rest
Example
The gentle music lulled the baby to sleep.
温柔的音乐使宝宝入睡。
C1 noun/adjective /ˈluː.nə.tɪk/

lunatic

疯子
Meaning
A person who is insane or acting in a foolish or reckless way; also used as an adjective meaning insane.
Example
The driver was driving like a lunatic on the highway.
司机在高速公路上像疯子一样开车。
C1 noun ˌlɪt.ɪˈɡeɪ.ʃən

litigation

诉讼
Meaning
The process of taking legal action; a lawsuit.
Example
The litigation accused the regime of human rights abuses.
诉讼指控政权侵犯人权。
C1 verb /ˈlɛvi/

levy

征收
Meaning
To impose or collect, especially a tax or fine.
Example
The government decided to levy a new tax on luxury goods.
政府决定对奢侈品征收新税。
C1 verb /ˈlɪbəreɪt/

liberate

解放
Meaning
to set free from imprisonment, oppression, or restraint
Example
The army liberated the city from enemy control.
军队从敌人控制中解放了城市。
C1 verb, noun /læɡ/

lag

滞后或延迟
Meaning
To fall behind in movement, progress, or development; a delay or period of falling behind.
Example
The old computer tends to lag when running new software.
旧电脑在运行新软件时常常滞后。
C1 adjective /ˈlɑːpˌsaɪdɪd/

lopsided

倾斜的，不平衡的
Meaning
with one side lower, larger, or different from the other; uneven or imbalanced
Example
The cake looked lopsided after being decorated in a hurry.
蛋糕看起来不平衡，因为急忙装饰。
C1 noun /ˈlæt.ɪ.tuːd/

Latitude

纬度
Meaning
the angular distance of a place north or south of the earth's equator; freedom to act or think
Example
The GPS device showed our exact latitude and longitude coordinates on the map.
GPS设备在地图上显示了我们的准确纬度和经度坐标。
C1 noun /ˈleɪ.dəl/

Ladle

汤勺
Meaning
a large deep spoon with a long handle, used for serving soup or other liquids
Example
Use the ladle to serve the hot soup into bowls.
使用汤勺将热汤倒入碗中。
C1 noun, verb /ˈliːvər/ or /ˈlɛvər/

lever

杠杆，刚性杆
Meaning
a rigid bar used to move or lift heavy objects; to move something using leverage.
Example
He used a lever to lift the heavy stone.
他使用了一个杠杆来举起重石。
C1 adjective /ˈlæv.ɪʃ/

Lavish

奢华; 奢侈; 慷慨
Meaning
expensive; elaborate; extravagant; generous
Example
The wedding was a lavish celebration with hundreds of guests.
婚礼是一场奢华的庆祝活动，邀请了数百名宾客。
C1 adjective /ˈlɛdʒəbl/

legible

可读的
Meaning
clear enough to read
Example
Her handwriting was barely legible.
她的手写字几乎不可读。
C1 noun /læʃ/

Lash

睫毛; 鞭打
Meaning
an eyelash; a sharp blow with a whip or rope; to strike forcefully
Example
She carefully applied mascara to make her lashes look longer and darker.
她小心地涂抹睫毛膏，使她的睫毛看起来更长更黑。
C1 noun /luː/

lieu

代替
Meaning
Instead of; in place of.
Example
He gave money in lieu of flowers.
他给了钱代替花。
C1 noun /ˈledʒ.ər/

Ledger

总账
Meaning
a book or other collection of financial accounts of a particular type
Example
The accountant updated the company ledger daily.
会计每天更新公司的总账。
C1 noun /ˌlaɪ.sənˈsiː/

Licensee

许可证持有者
Meaning
a person or organization that holds a license to do something
Example
The licensee is responsible for following all regulations.
许可证持有者负责遵守所有规定。
C1 noun

Longitude

经度
C1 noun /ˈliːniənsi/

leniency

宽容
Meaning
The quality of being more merciful or tolerant than expected.
Example
The judge showed leniency in his ruling.
法官在判决中表现出宽容。
C1 noun /lɔnˈdʒɛvəti/

longevity

长寿
Meaning
Long life or long existence of something.
Example
Good habits contribute to health and longevity.
良好的习惯有助于健康和长寿。
C1 verb /ˈlɪkwɪdeɪt/

liquidate

清算
Meaning
To sell assets in order to pay off debts; to close a business and convert assets into cash.
Example
The company decided to liquidate its assets to pay creditors.
公司决定清算其资产以支付债权人。
C1 adjective /ˌlaɪtˈhɑːrtɪd/

light-hearted

轻松愉快的
Meaning
cheerful, carefree, and not serious
Example
She gave a light-hearted speech at the party.
她在派对上做了一个轻松愉快的演讲。
C1 noun/verb /liːʃ/

leash

牵引绳
Meaning
a strap or cord used to control or guide an animal; to restrain or control
Example
The dog was on a leash during the walk.
狗在散步时被牵引绳拴着。
C1 verb, adjective, noun /lɪmp/

limp

跛行 / 虚弱
Meaning
to walk with difficulty, often due to injury or weakness; lacking strength or firmness.
Example
He limped after injuring his ankle.
他在伤到脚踝后跛行。
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。
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 adjective liːst prɪˈpeərd

least prepared

最不准备
Meaning
Having the minimum level of readiness or equipment to handle a situation.
Example
Bangladesh is among the least prepared for climate adaptation.
孟加拉国在气候适应方面是最不准备的国家之一。
C1 noun /ˈlɪməˌziːn/

limousine

由司机驾驶的豪华大轿车
Meaning
a large, luxurious car driven by a chauffeur.
Example
The bride arrived in a white limousine.
新娘乘坐一辆白色的豪华轿车到达。
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。
C1 noun /ˈliːʒən/

lesion

损伤
Meaning
An area of damage or abnormal change in the tissue of an organism, often caused by injury or disease.
Example
The doctor examined the skin lesion carefully.
医生仔细检查了皮肤上的损伤。
C1 noun /ˈlɛktən/

lectern

讲台
Meaning
A tall stand with a sloping top used to support a book, notes, or script during a speech or lecture.
Example
The professor placed her notes on the lectern before starting her lecture.
教授在开始讲座之前，把笔记放在讲台上。
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。
C1 verb /lɜːrk/

lurk

潜伏
Meaning
to remain hidden so as to wait for an opportunity to attack or observe
Example
A stranger lurked in the shadows.
一个陌生人潜伏在阴影中。
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。
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。
C1 noun /ˈlɔːsuːt/

lawsuit

诉讼
Meaning
a legal case brought to a court of law by one person against another
Example
The company faced a lawsuit over false advertising.
公司因虚假广告而面临诉讼。
C1 verb /ˈlʌmbər/

lumber

笨重行走
Meaning
to move in a slow, heavy, awkward way
Example
The bear lumbered through the forest in search of food.
那只熊在森林中沉重地走着寻找食物。
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。
C1 verb /ləˈmɛnt/

lament

哀悼
Meaning
to express grief, sorrow, or regret about something
Example
She lamented the loss of her childhood home.
她哀悼了失去的童年家园。
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。
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。
C1 adjective /ˈljʊərɪd/

lurid

令人震惊且生动的轰动性
Meaning
shocking or sensational in a vivid way, often involving crime or violence
Example
The newspaper published a lurid account of the crime.
报纸发布了一篇令人震惊的犯罪报道。
C1 noun /ˈlæb.ə.rɪnθ/

labyrinth

迷宫, 复杂的路径网络
Meaning
A complicated network of paths or passages; an intricate and confusing arrangement.
Example
The city's streets were like a labyrinth.
城市的街道像迷宫一样。
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。
C1 noun /ˈleɪ.tən.si/

latency

延迟
Meaning
The delay in processing signals or data.
Example
High latency in online gaming can cause lagging issues.
在线游戏中的高延迟可能导致卡顿问题。
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。
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。
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。
C1 noun /ˈliːdʒən/

legion

一大群人，特别是士兵；大量
Meaning
a large group of people, especially soldiers; a great number
Example
The Roman army was divided into legions.
罗马军队被划分为军团。
C1 adjective /ləˈbɔːr.i.əs/

laborious

费力的
Meaning
requiring considerable effort and time; difficult and hard-working
Example
Writing the long report was a laborious task.
写长报告是一项费力的任务。
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。
C1 adjective /ˈlætərəl/

lateral

侧面
Meaning
Relating to the side or sideways movement.
Example
The football player made a quick lateral pass.
足球运动员做了一个快速的侧面传球。
C1 noun ˌlɪb.ərˈeɪ.ʃən

liberation

解放
Meaning
The action of setting someone free from imprisonment, slavery, or oppression; release.
Example
Liberation movements inspired many countries.
解放运动激励了许多国家。
C1 noun/adjective /ˈlɛzbiən/

lesbian

女同性恋
Meaning
a woman who is romantically or sexually attracted to other women
Example
She is a proud lesbian and advocates for equal rights.
她是一个自豪的女同性恋，支持平等权利。
C1 adjective /ˈlɔː.fəl/

Lawful

合法; 合理; 有效; 公正;
Meaning
legal; legitimate; valid; just
Example
The judge confirmed that their actions were lawful and proper.
法官确认他们的行为是合法和恰当的。
C1 noun /ˌluː.brɪˈkeɪ.ʃən/

lubrication

润滑
Meaning
The action of applying a substance to reduce friction between surfaces in mutual contact.
Example
Lubrication of the eyes is essential for well-being.
眼睛的润滑对健康至关重要。
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。
C1 verb /ˈlɛdʒɪsˌleɪt/

legislate

立法
Meaning
to make or enact laws
Example
The government plans to legislate new safety standards.
政府计划制定新的安全标准。
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。
C1 noun ˈledʒ.ɪ.slə.tʃər

legislature

立法机关
Meaning
The legislative body of a country or state; the branch of government that makes laws.
Example
The legislature drafts laws for governance.
立法机关起草治理的法律。
C1 phrase lɪˈdʒɪt.ɪ.mət sɛlf dɪˈfens

legitimate self-defense

合法自卫
Meaning
Lawful protection of oneself from harm or attack.
Example
The country claimed it was legitimate self-defense.
该国声称这是合法自卫。
C1 noun ˌlɪb.ər.ə.laɪˈzeɪ.ʃən

liberalization

自由化
Meaning
The removal or loosening of restrictions on something, typically an economic or political system.
Example
The liberalization of trade policies attracted foreign investments.
贸易政策的自由化吸引了外国投资。
C1 noun /ˈlʊkaʊt/

lookout

瞭望, 哨位
Meaning
A place for watching; a person keeping watch.
Example
The guard kept a lookout for suspicious activity.
卫兵警惕地监视着可疑活动。
C1 noun /ˈlɔːriət/

laureate

获得者
Meaning
A person honored with an award for outstanding achievement in a field, especially the arts or sciences.
Example
The Nobel laureate gave an inspiring lecture on peace.
诺贝尔奖获得者就和平发表了激动人心的演讲。
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。
C1 adjective /ˈlaɪf.laɪk/

lifelike

栩栩如生
Meaning
Very similar to a real person, object, or scene; realistic.
Example
The wax figure was so lifelike that people thought it was a real person.
这尊蜡像如此栩栩如生，以至于人们以为它是一个真人。
C1 verb /ˈlɔːndər/

launder

洗衣服 / 隐瞒非法获得的钱的来源
Meaning
to wash clothes, linens, etc.; or to conceal the origins of money obtained illegally
Example
She laundered all the dirty clothes on Sunday.
她在星期天洗了所有脏衣服。
C1 verb /loʊð/

loathe

厌恶
Meaning
to feel intense dislike or disgust for
Example
He absolutely loathes being late to meetings.
他完全讨厌迟到会议。
C1 adjective ˈluː.sɪd

lucid

清晰且易于理解
Meaning
Clear and easily understandable thoughts or explanations.
Example
His explanation was so lucid that everyone understood it.
他的解释如此清晰，以至于每个人都理解了。
C1 noun /ˌluː.mɪˈnɒs.ɪ.ti/

luminosity

光度
Meaning
The intrinsic brightness of a celestial object; the quality of emitting light.
Example
The luminosity of the star was measured with advanced instruments.
星星的光度通过先进的仪器进行了测量。
C1 adjective /ˈlæk.tɪk/

lactic

与牛奶或乳酸相关
Meaning
Relating to milk or lactic acid.
Example
Intense exercise can lead to a buildup of lactic acid in the muscles.
剧烈运动可能会导致肌肉中乳酸的积聚。
C1 adjective /læks/

lax

宽松的, 粗心的
Meaning
Not strict, severe, or careful; negligent or careless.
Example
The security at the airport was surprisingly lax.
机场的安保令人惊讶地宽松。
C1 noun ˈlɪniɪdʒ

Lineage

家谱
Meaning
Direct descent from an ancestor; ancestry or pedigree.
Example
Tracing your lineage can reveal unknown ancestors.
追踪你的家谱可以揭示未知的祖先。
C1 adjective/verb /ˈleɪ.bərd/

labored

吃力
Meaning
done with great effort and difficulty; or past tense of labor
Example
He gave a labored explanation that confused the audience.
他给出了一个吃力的解释，令观众感到困惑。
C1 noun /læns/

Lance

长矛
Meaning
a long weapon with a sharp metal point, used by soldiers on horseback
Example
The knight charged forward with his lance ready.
骑士带着准备好的长矛向前冲。
C1 adjective lɪŋˈɡwɪs.tɪk

linguistic

语言学的
Meaning
Related to language or linguistics; concerning the scientific study of language.
Example
The AI model learns from linguistic patterns.
这个AI模型从语言学模式中学习。
C1 adjective /ˈlʌʃəs/

luscious

美味的
Meaning
deliciously sweet or rich; highly appealing to the senses
Example
She served a luscious chocolate cake.
她端上了一块美味的巧克力蛋糕。
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。
C1 adjective /ˈluːdɪkrəs/

ludicrous

荒谬的
Meaning
so foolish, unreasonable, or out of place as to be amusing
Example
It is ludicrous to think the Earth is flat.
认为地球是平的，这是荒谬的。
C1 adjective /ˈluː.krə.tɪv/

lucrative

有利可图
Meaning
Producing a great deal of profit; highly profitable or financially rewarding.
Example
The real estate business is highly lucrative in urban areas.
房地产行业在城市地区非常有利可图。
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。
C1 adjective /ˌloʊ ˈspɪrɪtɪd/

low-spirited

沮丧
Meaning
feeling sad, depressed, or lacking enthusiasm
Example
He felt low-spirited after hearing the bad news.
他在听到坏消息后感到沮丧。
C1 noun /lɪˈbiːdoʊ/

libido

性欲
Meaning
Sexual desire or drive.
Example
Stress can sometimes lower a person's libido.
压力有时会降低一个人的性欲。
C1 adjective ˈleɪ.tənt

latent

潜在的或隐藏的
Meaning
Existing but not yet developed or manifested; hidden potential.
Example
His artistic talent remained latent for years.
他的艺术才华多年来一直处于潜在状态。
C1 noun ˌlaɪ.əˈbɪl.ə.ti

liability

责任
Meaning
The state of being responsible for something, especially by law; a debt or financial obligation.
Example
The company's liabilities exceeded its assets.
公司的负债超过了它的资产。
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。
C1 noun /liːs/

Lease

租赁合同
Meaning
a contract by which one party conveys land, property, services, etc. to another for a specified time, usually in return for a periodic payment
Example
They signed a two-year lease for the apartment.
他们签署了两年的公寓租赁合同。
C1 adjective /ˈlɔːf.ti/

Lofty

高大；崇高的性格；崇高的风格
Meaning
of great height; noble in character; elevated in style
Example
He has lofty ideals about making the world a better place.
他有崇高的理想，希望能让世界变得更美好。