四级词汇

Immature in behaviour; typical of a child

幼稚的，孩子气的

A metal made by combining two or more elements; to mix metals together

合金；使成合金

Nearly correct or exact; to come close to

大约的，近似的；接近

To sparkle brilliantly; bright sparkling light or shiny decorative particles

闪闪发光；亮光；装饰用亮片

A savage animal or cruel person; lacking reason or intelligence

畜生；残忍粗暴的人；无理性的，蛮力的

Able to use a language accurately and with ease; smooth and flowing

流利的，流畅的

Strong contempt or disdain; to treat with contempt or reject as unworthy

轻蔑，蔑视；不屑于做

Not allowing water through; to make resistant to water

防水的；使防水

Lacking strength or effectiveness; weak

虚弱的，无力的，软弱无效的

Without doubt; certainly or very probably

无疑地，确定地

A message sent by telegraph; to send such a message

电报；发电报

Still to be paid; owed as a debt

未付的，欠着的

Having or showing great ability or expertise

熟练的，技术高超的

The edge of a container or hat brim; to be nearly overflowing

边缘；帽檐；充满

To make someone feel revitalized; to reload a webpage to show new content

使清爽，恢复精力；刷新（网页）

A unit of power (about 746 watts) used to measure engine output

马力（功率单位）

To surprise or amaze greatly

使惊讶，使惊愕

Toward or facing the west

向西，朝西

Turning around a central axis (adj.); a circular road junction (n.)

旋转的；环形交叉路口

The chest or breast; one's innermost feelings; a very close friendship

胸部；内心；亲密的

Mischievous or badly behaved; mildly risqué

顽皮的，淘气的；轻微色情的

Done too quickly without enough care; hurried and rash

匆忙的，仓促的；轻率的

A heavy outer garment worn for warmth

大衣，外套

A fixed phrase with a non-literal meaning; a characteristic mode of expression

习语，成语；惯用表达方式

To slope or lean; to tend toward something; a slope

倾斜；倾向于；斜坡

A person who owns or manages a retail shop

店主，零售商

A man who does manual labor or skilled craft work

工人；工匠

To shine with a flickering light; a sparkle of light

闪烁；闪光

To examine something in detail to understand its nature or structure

分析，细察，分解

A branch of mathematics using symbols to represent and solve equations

代数学

Excessive concern for wealth and possessions; the belief that only matter exists

拜金主义；唯物主义

Sly and clever in deception; craftiness

狡猾的；奸诈，狡猾

A device that converts electrical signals into sound

扬声器，喇叭

The crime of betraying one's country

叛国罪，叛逆

Thick urban air pollution from smoke and chemical pollutants

烟雾，雾霾

To treat people cruelly by abusing power; to weigh heavily on the mind

压迫，压制；使压抑

A semiconductor device used to amplify or switch electronic signals

晶体管

A large room or building for indoor sports; a European academic secondary school

体育馆，健身房；（欧洲的）文法学校

Cheerful and merry; very (British)

快乐的，愉快的；非常（英式）

The amount that fills the mouth; a long or difficult word or phrase

一口（的量）；难以发音的词语

An introductory section of a book; to introduce with preliminary remarks

序言，前言；以…作为开场白

To reach a conclusion through logical reasoning

推断，演绎

The fee charged for sending mail; a postage stamp

邮资，邮费

A slow-moving land reptile with a protective shell

陆龟，乌龟

A ship powered by steam engines; a vessel or pot used for cooking food with steam

蒸汽船；蒸锅，蒸笼

Speed or urgency, often with carelessness; to hurry

匆忙，急忙；赶快

A flat-bladed digging tool; the black suit in playing cards; to dig with a spade

铁锹，铲子；黑桃（扑克牌花色）；用铁锹挖掘

To remove impurities; to cleanse from sin

净化，提纯；使洁净