1.descent
下来，下降，向下
The plane began to descent.
2.scrutiny
仔细研究，仔细检查
Her argument doesn't really stand to scrutiny.
3.colossal
巨大的
I made the colossal mistake of marrying him.
It's a colossal mistake of time and resources.
4.collateral
附带的、伴随的；次要的
connected with sth but less important than it
You'll have a lot of collateral damage，not just consumers but businesses.
I told my army to minimise collateral damage.
担保金、抵押品
We put up our homes as collateral in order to raise money to invest in the scheme.
5.impose…on
强制实行、强加
to use your authority to force sb. to accept sth.
The government imposed new taxes on fuel.
6.autocratic
专制的，专横的；独裁者的
having complete power；relating to a autocrat
To be honest，if the management were less autocratic，they could also learn a lot from their staff.
7.emulate
（因仰慕）而效仿；尽力赶超
to imitate sb/sth that you admire and try to be equal or surpass them
They seek only to emulate our experience.
For once，instead of son trying to emulate father，maybe father should try to emulator son.
8.disastrous
灾难性的，完全失败的
having extremely bad consequences and effects；very unsuccessful
Carelessness in driving offen results in disastrous accidents.
9.topple
（使）不稳而倒下，（使）摇摇欲坠
推翻（当权者）
10. variant
变体，变种；变化形式
a variant of a particular thing is sth that has a different form of that thing
What if I told you they are all variants of the same hero？ Do you believe that？
The two children had come down with a new variant of flu.
11.counterproductive
事与愿违的，适得其反的
producing problems or difficulties instead of helping to achieve a goal
Although this may seems like the easiest way，it is totally counterproductive.
12.spectacular
壮观的，壮丽的，盛大的；令人惊叹的
Your book is a spectacular success.
13.explode
爆炸
to burst or to make sth burst into small pieces，usually with a loud noise，often cause damage or injury
My head's going to explode！
14.quarantine
检疫隔离期；隔离；检疫；检疫区；隔离区
对（动物或人）进行检疫隔离
She was sent home and put in quarantine.
The quarantine is now abolished.
15.swear
咒骂，诅咒，说脏话
to use rude or offensive language，usually because you are angry
Everybody swears these days. Have you noticed？
All the time I was swearing and shouting at them.
16.mime
哑剧表演
a performance only use body movements and facial experience rather than speech
Totally silence，like…like a mime.
17.disfigure
毁损…的容貌；使…变丑
to spoil the appearance of sb/sth
He disfigured him with the acid，but only to his face.
18. around the clock
日以继夜地，连续一整天
Or imagine a research project with thousands of scientists working around the clock forever.
It's important to note that the increased flexibility didn't encourage them to work around the clock.
Teachers and parents should work together to stop teenagers from playing computer games all around the clock.
完～^o^