1
propulsion
n.推进力
the force that drives something forward
The rocket's propulsion is chiefly created by burning fuel.
2
crack
to break without dividing into separate parts; to break something in this way
v.敲出裂痕，敲破；垮掉；断裂，折断；说（笑话）
n.破裂声
adj.最好的，一流的
The soil cracked due to lack of water.
土地因为缺水而裂开。
3
lament
v.哀悼；惋惜；悲叹
n.悲叹；悼词
to feel or express great sadness or disappointment about somebody/something
The old woman began to lament the death of her husband.
老妇对丈夫的死感到悲痛。
4
let oneself go
v.尽情，情不自禁
become less tense, rest, or take one's ease
I really let myself go while on vacation.
5
courier
n.快递员，通讯员，导游
a person whose job is to carry messages, packages, etc., from one person to place to another
The courier brings the package to its destination.
6
poise
a calm, confident manner
v.使相等，使平衡
n.泰然自若，信心
We were all impressed by her poise and confidence.
7
solvent
a liquid substance that is used to dissolve another substance
adj.有溶解力的；有偿付能力的；
n.解决方法
The liquid is solvent in water.
这种液体溶于水。
8
stick sth. out
v.伸出
extend out or project in space.
She sticks her arms out for the exercises.
她做伸展手臂的运动。
9
slander
to make a false spoken statement about somebody that is intended to damage the good opinion that people have of them
v.讲坏话，污蔑，诽谤；
n.诽谤，诋毁
The actress was slandered by people for her social media post.
女演员因为社交软件上的发文而被诽谤。
10
vice
n.恶习；缺点；邪恶；恶行；生理缺陷；
adj.副的；代理的
evil or immoral behavior; an evil or immoral quality in somebody's character
Sleeping late is a vice.
睡懒觉是一种恶习。
11
retort
to reply quickly to a comment, in an angry, offended or humorous way
v.反驳；
n.反驳；反击，回嘴
"You're stupid!" I said;"So are you!" He retorted.
"你真傻",我说。“彼此彼此”他反驳。
12
pinpoint
to find and show the exact position of somebody/something or the exact time that something happened; to be able to give the exact reason for something or to describe something exactly
v.准确地解释或说明；
adj.精确的；
n.针尖，极小之物，极不重要的事物
I pinpointed the enemy's position with the flag.
我用旗子标明了敌人确切的位置。
13
dock
n.码头；船埠；被告席
v.(船)进港；扣工资；剪短(动物的尾巴)
a part of a port where ships are repaired, or where goods are put onto or taken off them
The boats are tied up along the dock.
14
discharge
to release force or power
v.放电；
n.释放
The ass-itch boy spoiled circuit and discharged the electricity.
熊孩子破坏电路，把电放了。
15
bear sth. in mind
v.记住某事
keep in mind for attention or consideration
Bear in mind to hang your clothing after you wash it.
你要记住洗完衣服就晾起来。
16
yearn
v.渴望，向往
to want something very much, especially when it is very difficult to get
He yearns to have his own house.
17
excavate
v.挖掘，挖出
to dig in the ground to look for old buildings or objects that have been buried for a long time; to find something by digging in this way
This machine is excavating the ground.
18
take sth.in
v.领会；改小尺寸
know and comprehend the nature or meaning of
She really took the book in and understood it well.
这本书她真的心领神会。
19
scrupulous
adj.小心谨慎的，严谨的，细心的
very careful about doing something correctly
The player looks scrupulous when he adjusts his position to hit the ball.
这个参赛选手调整击球位置时看起来很谨慎。
20
fatuous
adj. 愚昧而不自知的
foolish or stupid
The fatuous monarch had been manipulated by others.
愚蠢的君主一直在被别人操纵。
21
pinch
v.捏，掐，夹痛
n.少量，一撮
to take a piece of somebody's skin between your thumb and first finger and squeeze hard, especially to hurt the person
The little girl's sister always pinches her cheek.
22
hereditary
adj.世袭的，遗传的
holding a position or title that was passed on from your parent or and older relative
Their beautiful blonde hair is hereditary.
他们漂亮的金黄头发是会遗传的。
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