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A1 verb /læf/

laugh

笑
Meaning
to make sounds and movements expressing happiness or amusement
Example
The joke made everyone laugh.
这个笑话让每个人都笑了。
B1 noun /ˈloʊnlinəs/

Loneliness

孤独
Meaning
The state of being alone and feeling sad about it.
Example
She felt a deep sense of loneliness after moving to the new city.
她搬到新城市后感到深深的孤独。
C2 noun /ˈlɪtərdʒi/

liturgy

礼仪
Meaning
A form or formulary according to which public religious worship is conducted.
Example
The priest followed the liturgy during the Sunday mass.
牧师在周日弥撒中遵循了礼仪。
A2 adverb /ˈlaʊdli/

loudly

大声地
Meaning
in a way that produces a lot of sound; with a high volume
Example
He spoke loudly so everyone in the room could hear him.
他大声地说话，让房间里的人都能听见。
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。
C2 adjective /loʊˈkweɪʃəs/

loquacious

话多的
Meaning
tending to talk a great deal; very talkative
Example
The loquacious child entertained everyone with endless stories.
话多的孩子用无尽的故事娱乐了每个人。
B2 noun ˌlɪmɪˈteɪʃən

limitation

限制
Meaning
A limiting rule or circumstance; a restriction on the size or amount of something permissible.
Example
Limitation in data affects policy-making decisions.
数据的限制影响政策决策。
C2 noun/verb /ˈlɛv.ən/

leaven

酵母
Meaning
a substance, typically yeast, that causes dough to rise; to permeate and modify
Example
A little yeast will leaven the bread dough.
一点酵母会让面团发酵。
C2 noun /ˈlæki/

lackey

侍从
Meaning
a person who is overly willing to serve or obey someone else
Example
He treated his assistant like a mere lackey.
他把助手当作一个普通的侍从对待。
C2 verb /ˈlɪk.wɪ.faɪ/

liquefy

液化
Meaning
to make or become liquid
Example
The heat will liquefy the butter in a few minutes.
热量将在几分钟内使黄油液化。
C2 noun /ˈlɛvi/

levee

堤坝
Meaning
An embankment built to prevent the overflow of a river or to hold back water.
Example
The town built a levee to protect itself from flooding.
该市建造了一座堤坝，以防洪水。
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。
B2 verb lɔːntʃt

launched

发射
Meaning
Set (something) in motion by pushing it or letting it go.
Example
The satellite was launched successfully.
卫星已成功发射。
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。
C2 adjective /ˈluːpi/

loopy

疯癫
Meaning
crazy, silly, or eccentric
Example
After working all night, he felt a little loopy.
整夜工作后，他感觉有点疯癫。
C2 noun /lænˈtɑː.nə/

Lantana

兰塔纳
Meaning
a tropical flowering plant with clusters of small colorful flowers
Example
The lantana flowers attract butterflies to the garden.
兰塔纳的花朵吸引蝴蝶到花园。
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。
C2 adjective /ˈluːsənt/

lucent

发光的
Meaning
shining or glowing with light
Example
The lucent stars brightened the night sky.
发光的星星照亮了夜空。
C2 adjective /ˈlɪɡ.ni.əs/

ligneous

木质的
Meaning
having the texture or appearance of wood; woody
Example
The ligneous stem supported the heavy flowers.
木质的茎支撑着沉重的花朵。
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。
C2 noun /ˈlɑːrdər/

larder

储藏室
Meaning
A place, such as a pantry, where food is stored.
Example
The larder was full of fresh bread and cheese.
储藏室里满是新鲜的面包和奶酪。
B1 verb /loʊd/

load

装载
Meaning
to put goods or cargo onto a vehicle; to fill something with a heavy quantity
Example
Workers load the truck with heavy boxes.
工人们用重箱子装载卡车。
B2 adjective /lʌɡˈʒʊəriəs/

luxurious

奢华的
Meaning
extremely comfortable, elegant, or enjoyable, often involving great expense
Example
They stayed in a luxurious hotel during their vacation.
他们在度假期间住进了一家奢华的酒店。
C2 noun lɑːˈʒɛs

largesse

慷慨
Meaning
Generosity in bestowing money or gifts upon others.
Example
His largesse towards the charity was greatly appreciated.
他对慈善事业的慷慨得到了高度赞赏。
B1 noun /ˈlaɪtnɪŋ/

lightning

闪电
Meaning
a flash of light in the sky caused by electricity during a storm
Example
The lightning struck a tree near our house.
闪电击中了我们家附近的一棵树。
C2 adjective /ˈlæk.ti.əl/

lacteal

与牛奶相关或类似牛奶的
Meaning
Relating to or resembling milk; conveying chyle or milky fluid.
Example
The lacteal vessels in the small intestine absorb dietary fats.
小肠中的乳汁管吸收膳食脂肪。
C2 noun /ˈluː.məˌnɛr.i/

luminary

杰出人物
Meaning
A person who inspires or influences others, especially in a particular field.
Example
He is considered a luminary in the world of science.
他被认为是科学界的杰出人物。
A2 adjective /liːst/

Least

最少
Meaning
smallest in amount or degree; minimal
Example
This is the least expensive option available.
这是最便宜的可用选项。
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。
C2 noun ˈlɪɡ.nəʊˌsæt

LignoSat

木卫星
Meaning
A wooden satellite that demonstrates the use of wood in space technology.
Example
LignoSat demonstrates the use of wood in space.
LignoSat 展示了木材在太空中的应用。
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。
B2 noun /ˌledʒɪsˈleɪʃən/

legislation

立法
Meaning
laws considered collectively, or the act of making laws
Example
The government passed new legislation to protect the environment.
政府通过了新的立法来保护环境。
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。
C1 adjective /ˈlɪstləs/

listless

无精打采
Meaning
lacking energy, enthusiasm, or interest
Example
She felt listless after working long hours without rest.
她在没有休息的长时间工作后感到无精打采。
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。
B2 adverb /ˈlaɪtli/

lightly

轻轻地
Meaning
gently or with little force or weight
Example
She touched the baby’s hand lightly.
她轻轻地触摸了宝宝的手。
A1 noun /ˈlet.ər/

Letter

字母; 信
Meaning
a character representing one or more of the sounds used in speech; a written message, typically sent in an envelope
Example
She wrote a letter to her grandmother.
她给她的祖母写了一封信。
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。
B2 adjective /ˈlɪniər/

linear

线性
Meaning
Arranged in or extending along a straight line.
Example
The artist used linear perspective in his drawings.
艺术家在他的画作中使用了线性透视。
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。
B2 adverb /ˈliːɡəli/

legally

合法地
Meaning
in a way that is allowed by law
Example
He is legally responsible for his actions.
他对自己的行为负有合法责任。
A2 adjective /ˈlʌki/

lucky

幸运的
Meaning
having good fortune or favorable circumstances
Example
She felt lucky to have such supportive friends.
她觉得自己很幸运，拥有如此支持她的朋友。
C2 adjective /ˈlɪmpɪd/

limpid

清澈
Meaning
Clear and transparent, easily understood.
Example
The limpid water of the lake reflected the sky perfectly.
湖水清澈地反射了天空。
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。
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。
B2 noun /ˈliːtər/

litre

升
Meaning
a metric unit of volume equal to 1,000 cubic centimeters; commonly used to measure liquids
Example
She bought a litre of milk from the shop.
她从商店买了一升牛奶。
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
A2 verb /laɪ/

lie

撒谎, 躺着
Meaning
to be in a horizontal position; to tell an untruth
Example
The book lies on the table.
书放在桌子上。
B1 noun /ˈlaɪf.staɪl/

lifestyle

生活方式
Meaning
The way in which a person or group lives, including habits, attitudes, and possessions.
Example
A healthy lifestyle includes regular exercise and a balanced diet.
健康的生活方式包括定期锻炼和均衡饮食。
B2 adjective ˈlɒdʒ.ɪ.kəl

logical

逻辑的
Meaning
Of or according to the rules of logic or formal argument.
Example
Logical circuits ensure effective computation.
逻辑电路确保有效计算。
C2 adjective /lɪˈbɪdənəs/

libidinous

好色
Meaning
Showing excessive sexual drive; lustful.
Example
The play was criticized for its libidinous characters.
这部剧因其好色的角色而受到批评。
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。
C2 verb /lɪm/

limn

描述 / 勾画
Meaning
to depict or describe something vividly in words or art.
Example
The author limned the beauty of the countryside.
作者生动地描绘了乡村的美丽。
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。
C2 noun /lɪnt/

lint

棉絮
Meaning
small soft fibers that come off cloth, often found in dryers or on clothes
Example
There was lint all over his black shirt after the wash.
洗完后，他的黑衬衫上有棉絮。
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。
B2 noun /ˈlɪvər/

liver

肝脏
Meaning
a large organ in the body that cleans the blood and produces bile to help digest food.
Example
The liver plays a vital role in removing toxins from the body.
肝脏在清除体内毒素中起着至关重要的作用。
C2 noun /ˌluːkjʊˈbreɪʃən/

lucubration

夜间学习
Meaning
study or meditation, especially at night
Example
His novel was the result of long lucubration.
他的小说是长时间夜间学习的结果。
A2 noun/adjective /ˈlɪvɪŋ/

living

生活 / 生计
Meaning
the state of being alive; or a way of earning money
Example
He makes his living as a teacher.
他以教师的身份谋生。
B2 adjective /ˈlɔːŋtaɪm/

longtime

长期的
Meaning
having existed or continued for a long time
Example
They are longtime friends who met in college.
他们是大学时认识的长期朋友。
B2 adjective /ˈlɛdʒɪslətɪv/

legislative

立法的
Meaning
relating to the making of laws
Example
The legislative body passed the new tax bill.
立法机构通过了新的税法。
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。
B1 noun /ˈlɔː.jər/

Lawyer

律师
Meaning
a person who practices or studies law; an attorney or a counselor
Example
She hired a lawyer to handle her case.
她雇佣了一位律师来处理她的案件。
C1 noun /lɪˈkjʊər/

liqueur

甜酒
Meaning
A strong, sweet alcoholic drink flavored with fruits, herbs, or spices.
Example
She served a small glass of cherry liqueur after dinner.
她在晚餐后提供了一小杯樱桃利口酒。
C2 noun /ˈlɔːŋ.ɡən/

Longan

龙眼
Meaning
a small round tropical fruit with translucent white flesh and sweet taste, related to lychee
Example
Longan fruits are often eaten fresh or dried and are popular in Asian desserts.
龙眼果通常鲜食或晒干，在亚洲甜点中很受欢迎。
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。
B2 adjective /ˈlɛdʒəndɛri/

legendary

Meaning
remarkable enough to be famous; often used to describe something that is iconic or widely known
Example
The legendary musician performed in front of a packed stadium.
B2 noun /ˈlɒk.ɪt/

Locket

项链坠子
Meaning
a small ornamental case, typically made of gold or silver, worn on a chain around the neck
Example
She kept her grandmother's photo in the locket.
她把祖母的照片放在了项链坠子里。
B2 noun /ˈlɔɪəlti/

loyalty

忠诚
Meaning
a strong feeling of support or allegiance
Example
His loyalty to the company earned him great respect.
他对公司的忠诚为他赢得了极大的尊敬。
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 verb /læmˈbæst/

lambast

严厉批评
Meaning
To criticize harshly or to beat severely.
Example
The coach lambasted the team for their poor performance.
教练因团队表现差而严厉批评了他们。
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 ləˈθɑːrdʒɪk

lethargic

昏睡
Meaning
Being inactive due to lack of physical or mental energy
Example
After a heavy meal, he felt lethargic and sleepy.
吃了丰盛的晚餐后，他感到昏睡和困倦。
C2 verb /læmˈpuːn/

lampoon

讽刺
Meaning
to publicly criticize or ridicule someone or something with humor, irony, or sarcasm
Example
The cartoonist lampooned the politician for his contradictory statements.
漫画家因政治家的矛盾言论而讽刺他。
C2 noun /ˈlændˌhoʊl.dər/

landholder

土地所有者
Meaning
a person who owns land, especially in large amounts
Example
The landholder leased part of his property to local farmers.
土地所有者将部分财产租给了当地的农民。
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。
C2 adjective /ˈlɪtərəl/

littoral

沿海的
Meaning
Related to or situated on the shore of the sea or a lake.
Example
The littoral zone is home to many unique marine species.
沿海地区是许多独特海洋物种的栖息地。
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。
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。
A2 phrasal verb /lʊk ˈɑːftər/

look after

照顾
Meaning
to take care of someone or something; to be responsible for someone’s well-being
Example
She looks after her younger brother while their parents are at work.
父母上班时，她照顾弟弟。
C2 phrase /lɛt ðɛm ˈθɪə.ri/

let them theory

让他们随心所欲的理论
Meaning
A philosophy of not trying to control others' actions or opinions and allowing them to be themselves.
Example
He follows the Let them theory and ignores negativity.
他遵循“让他们”理论，并忽视负面情绪。
C2 noun/adjective /ˈlæpɪˌdɛri/

lapidary

宝石雕刻师
Meaning
As noun: a person who cuts, polishes, or engraves precious stones; As adjective: relating to such work.
Example
The museum displayed lapidary tools used in ancient times.
博物馆展示了古代使用的宝石雕刻工具。
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。
A2 noun /ˈlɜrnɪŋ/

learning

学习
Meaning
The process of gaining knowledge or skills through study or experience.
Example
Learning a new language can be exciting.
学习一门新语言可能是令人兴奋的。
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 /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 /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 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。
C2 adjective /luːd/

lewd

猥亵
Meaning
Sexually offensive, obscene, or vulgar.
Example
He was arrested for making lewd remarks in public.
他因在公共场合发表猥亵言论而被捕。
B2 noun /ˈlɪb.ər.ti/

Liberty

自由
Meaning
the state of being free within society from oppressive restrictions imposed by authority on one's way of life, behavior, or political views
Example
The Statue of Liberty represents freedom and democracy.
自由女神像象征着自由和民主。
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 noun /laɪm/

Lime

青柠
Meaning
a small green citrus fruit with acidic juice
Example
Add a slice of lime to your drink.
在你的饮料中加入一片青柠。
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。
A2 verb/adjective /lɒst/

lost

丢失
Meaning
Unable to find the way; no longer in possession of something.
Example
He lost his keys and couldn’t enter the house.
他丢失了钥匙，无法进入房子。
B2 noun /ˈlɒtəri/

lottery

彩票
Meaning
A means of raising money by selling numbered tickets and giving prizes to the holders of numbers drawn at random.
Example
He won a car in the national lottery.
他在全国彩票中赢得了一辆车。
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 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。
C2 verb /lɑːl/

loll

懒散地坐着
Meaning
To sit, lie, or stand in a lazy, relaxed way.
Example
He lolled on the sofa after a long day at work.
在长时间的工作后，他懒散地坐在沙发上。
A2 noun /ˈlʌɡ.ɪdʒ/

Luggage

行李
Meaning
suitcases or other bags in which to pack personal belongings for traveling
Example
Please check your luggage at the airport counter.
请在机场柜台检查您的行李。
C2 adjective /ˌlækəˈdeɪzɪkəl/

lackadaisical

懒散或懒惰
Meaning
lacking enthusiasm, energy, or determination; careless or lazy
Example
His lackadaisical attitude toward work annoyed his boss.
他对工作的懒散态度让他的老板很烦恼。
C2 noun /ˈlæriət/

lariat

套索
Meaning
A long rope with a noose at one end used to catch animals such as cattle or horses.
Example
The cowboy threw his lariat to catch the stray horse.
牛仔投掷了他的套索，捕捉到了迷路的马。
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。
B1 noun /lɔk/

Lock

锁
Meaning
a mechanism for keeping a door, lid, etc., fastened, typically operated only by a key of a particular form
Example
Make sure you lock the door before leaving.
确保在离开前锁好门。
C2 /laɪð/

lithe

灵活且优雅
Meaning
thin, supple, and graceful in movement
Example
The lithe dancer captivated the audience with her graceful spins.
灵活的舞者用她优雅的旋转迷住了观众。
A2 noun /ˈlev.əl/

level

水平
Meaning
A position on a real or imaginary scale of amount, quantity, extent, or quality.
Example
Pollution levels must be reduced urgently.
污染水平必须紧急降低。
C2 noun/verb /læˈsuː/

lasso

套索
Meaning
a rope with a loop used to catch animals; to catch with such a rope
Example
The cowboy lassoed the horse quickly.
牛仔快速用拉索抓住了马。
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。
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。
B1 noun /ˈlæftər/

laughter

笑声
Meaning
the act or sound of laughing
Example
The room was filled with laughter.
房间里充满了笑声。
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。
A1 noun /lænd/

Land

土地; 土壤
Meaning
the part of the earth's surface that is not covered by water; an area of ground, soil, or earth
Example
The farmer worked hard to cultivate his land and grow healthy crops.
农民努力耕种他的土地，种植健康的作物。
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。
B1 adjective /ˈliː.dɪŋ/

Leading

领先的; 主要的; 最重要的
Meaning
foremost; principal; most important; guiding
Example
She is a leading expert in environmental science.
她是环境科学领域的领先专家。
B1 adjective /luːs/

loose

松
Meaning
not firmly or tightly fixed in place
Example
The screw is loose and needs tightening.
螺丝松动，需要紧固。
C2 noun /laʊs/

Louse

虱子
Meaning
a small insect that lives on the hair or skin of people or animals
Example
The child had a louse in his hair.
孩子的头发里有一只虱子。
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。
B2 adjective /ˈluː.nər/

Lunar

月球的
Meaning
relating to the moon; of or concerning the moon
Example
The lunar eclipse was visible last night.
月食昨晚可见。
C2 noun /lækˈteɪʃən/

lactation

乳汁分泌
Meaning
the secretion of milk by the mammary glands of female mammals
Example
The doctor explained that lactation is a natural process after childbirth.
医生解释说，哺乳是分娩后的一种自然过程。
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。
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 /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。