四级词汇

Showing courage in the face of danger; to face something with courage

勇敢的；勇敢地面对

To prevent someone from achieving a goal; to cause annoyance or disappointment

挫败，阻挠；使沮丧

To state something clearly and in detail

明确说明；详细指定

A small advanced class or professional meeting for discussing ideas

研讨课；专题讨论会

The science of electrical devices; electronic equipment collectively

电子学；电子设备

Closely packed together; thick and difficult to pass through

密集的，浓密的

To grow larger or more intense; a rolling ocean wave; excellent

膨胀，肿胀；涌浪；极好的

A signal or prompt for action; a billiard stick; to give a signal

提示，暗示；台球杆；给…提示

A source of danger or risk; to expose to danger

危险，隐患；冒险

Rarely, not often

很少，不常

Not clearly expressed or understood; lacking precision

模糊的，含糊的，不明确的

A person from another country

外国人，外地人

Great pleasure or joy; to please greatly

高兴，愉快；使高兴

The quality of being easy and suitable; a helpful thing

便利，方便；便利的事物

To interlace threads to form fabric; a style of weaving

编织；织法

A school for higher or specialized learning; a society promoting arts or sciences

学院，学会

Wood used in construction; trees as a source of wood

木材，木料；用材林

A metal fastener or door latch; to lock or run away suddenly

螺栓；门闩；用螺栓固定；突然逃跑

A rounded underground plant organ; a light bulb; to swell into a rounded shape

球茎，鳞茎；电灯泡；膨胀成球状

Having or showing expertise; requiring special training

熟练的，有技能的

Goods carried by a ship, aircraft, or vehicle

货物，货运

An evil supernatural being; a wicked person; to annoy

魔鬼，恶魔；折磨，戏弄

A person who sells goods or services

卖方，销售者

A harbour structure for ships; the defendant's enclosure in court; to bring into port or deduct wages

码头；被告席；使靠岸；扣薪

A thick low cloud reducing visibility; a state of confusion; to become obscured

雾；迷糊状态；变模糊

At an unspecified time; former

在某个时候，改天；以前的，曾经的

A soldier serving at sea and on land; relating to the sea or naval affairs

海军陆战队士兵；海洋的，海事的

A brief statement of main points; concise and done without full procedure

摘要；概要；简短的；即决的

To cut or neaten; neat in appearance; decorative edging

修剪；整洁的；装饰边

Causing death or serious destruction

致命的，灾难性的，决定性的

A brightly coloured flying insect; the butterfly swimming stroke

蝴蝶；蝶泳

To cause to move faster; to increase in speed or rate

加速，加快

An alloy of copper and tin; reddish-brown in colour

青铜；青铜色的

To die or kill by suffocation in water; to be overwhelmed

溺死；淹没；被压倒

A space with no matter; a vacuum cleaner; to clean with a vacuum cleaner

真空；吸尘器；用吸尘器打扫

To expel saliva from the mouth; a rod for roasting meat; a narrow strip of land

吐唾沫；烤肉叉；沙嘴

To give orders or speak for transcription; an authoritative command

命令，口授；指令

Done by hand rather than machine; a handbook of instructions

手动的，手工的；手册，说明书

To rest on one or both bent knees

跪下，跪着

Clothes to be washed; a place where clothes are washed

洗衣物；洗衣店

Of or relating to a navy or warships

海军的；军舰的

A small handgun fired with one hand

手枪

An expression of regret for wronging someone; a formal defence of a belief

道歉；辩护

To make someone feel bored; to drill a hole; a tedious person or thing

使厌烦；钻孔；令人厌烦的人或事

Deeply loved; a person who is dearly loved

心爱的；心爱的人

To amuse an audience; to host guests; to consider an idea

娱乐；招待；考虑（想法）

To get something back or recover it; to search for stored data; an act of retrieval

取回，找回；检索（数据）；救险球

In or to a foreign country across the sea

在海外，国外的