ensure 语法

#单词需要一个个啃，学习语言没有那么多大道理，也没有捷径，脚踏实地才是最好的捷径#

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content (n.)
1. 目录（复数）
a contents page 目录页
table of contents 目录
2. 内容（单数）
We failed to grasp the content of his lecture.
In terms of content, the book is good, but it is poorly written.
Children shouldn't be allowed to watch movies with violent content.
3. 所含之物（复数）
go through the contents of the bag
ensure (v.)确保，保证
ensure sth.
ensure sb. sth.
ensure that...
The airports are taking numerous steps to ensure the safety of their passengers in the wake of the terrorist attack.
in the wake of 在...之后（负面事件）
Safety regulations have been improved in the wake of the Mexican Gulf Oil Spill.
prior to/in advance of 在...之前
All the villagers have been evacuated to safety prior to the typhoon.
All the villagers have been evacuated to safety in advance of the typhoon.
We need to find a suitable and qualified replacement prior to his departure.
make advances in science=make scientific advances
make advances in medicine=make medical advances
The last-minute goal ensured our team a place in the final.
Please ensure that all the lights are turned off before you leave.
Please see to it that all the lights are turned off before you leave.
Please make sure that all the lights are turned off before you leave.
ensure 与 make sure 区别
1. ensure 比 make sure 更正式
2. ensure sth. 正确，make sure sth. 错误，make sure 后接that从句
assure (v.)使...放心，使...安心
assure sb.
assure sb. of sth.
assure sb. that...
'You have my continued support.' my boss assured me.
My boss assured me of his continued support.
My boss assured me that I had his continued support.
rest assured 尽管放心，请放心
You can rest assured that we will never ever repeat the mistakes again.
=Rest assured, we will never ever repeat the mistakes again.

frequent (a.)经常的
frequent (v.)经常去+宾语
a frequent/regular/constant customer
He used to frequent the local pubs.
The local pubs were his haunt.
The local pubs were his stamping ground.
The local pubs were his stomping ground.
follow suit 1)跟同一花色的牌 2）效仿，模仿
When I played a heart, he followed suit.
When one manufacturer raises prices, others may well follow suit.
suit (n.)（同一花色的）一张牌
suits (pl.)花色
diamonds (n.)
clubs (n.)
hearts (n.)
spades (n.)
the ten of diamonds
the three of spades