用法：
1. take back 收回，接回，退回。如：
I’m sorry, I take back what I said. 对不起，我收回我说过的话。
They wouldn’t take back the shirt. 衬衫他们不让退货。
2. take down
(1)写下，记下。如：
He took down everything the teacher said. 他把老师说的所有话都记了下来。
I didn’t take down his phone number. 我没有记下他的电话号码。
(2)拆下，拆掉。如：
The machine takes down easily. 这机器很容易拆。
They decided to take down the dangerous bridge. 他们决定把这座危险的`桥拆掉。
3. take in
(1)收留。如：
So he took in the boy (dog). 所以他就收留了这个男孩(这条狗)。
(2)包括。如：
The list takes in everyone. 每个人都上了名单。
(3)理解。如：
We find it difficult to take in what he teaches. 我们发现他教的东西很难理解。
(4)欺骗，使上当。如：
Don’t be taken in by his promises. 别被他的诺言所欺骗。(from www.nmet168.com)
4. take off
(1)脱下。如：
Take off your wet clothes. 脱下你的湿衣服。
He took off his glasses and looked up. 他取下眼镜， 抬头看了看。
(2)起飞。如：
When did the plane take off? 飞机是什么时候起飞的?
(3)打折扣，扣掉，去掉。如：
Can you take five dollars off the price? 你可以减价五美元吗?
(4)请假，休息。如：
I want to take a day off (from work). 我想休假一天。
5. take on
(1)聘用，雇用。如：
The company decided to take on a new secretary. 这家公司决定聘一个新秘书。
(2)呈现，显现，具有。如：
This word had taken a new meaning. 这个词有了新的意义。
Her face took on a new expression. 她的脸上露出了新的表情。
(3)承担或担任(工作或责任等)。如：
He advised me not to take too much work. 他劝我不要做太多的工作。
6. take over 接替，接管，继承。如：
Who will take over his job? 他的工作由谁来接替?
Would you like me to take over the driving for a while? 你愿意让我接替你开一会儿车吗?