(1) vi. 逗留，待，暂住
Shall we go or stay?
He stayed in bed all day.
Can you stay after work to play tennis?
She was staying in the same hotel as I was.

(2) link-v 保持，持续
We are going to stay awake to see the eclipse.
我们不睡，等着看月蚀。
The weather has stayed warm all week.
Please stay seated.
坐在原地。

8. tell … from … 区别……

I can't tell Jane from Sarah --- they look so alike.
It's important to tell truth from falsehood.
区别真理与谬误很重要。
One should know how to tell the good ones from the bad ones.
一个人应该知道如何区分好与坏。

9. as a result 结果；因此

As a result he had been given an excellent job.
He broke his leg. As a result, he'll have to be away from school for some time.
We follow up on the suggestions, and have had satisfying experiences as a result.

10. do one's best 尽最大努力，尽量

We had done our best, but we had failed.
I did my best to help him.
It was not his fault. He was doing his best.

11. consider

(1) vt. 认为，断定
He is currently considered the best British athlete.
目前他被认为是英国最好的运动员。
They considered the house beautiful.
We don't consider her suitable for the job.
我们认为她不适合干这份工作。
Most people consider him innocent.

(2) vt.&vi. 考虑
I'm considering changing my job.
You have to consider what to do next.
Your suggestion will be carefully considered.
Let me consider.

12. afford vt. (常与can, could, be able to连用)

(1) 负担得起，承受得起（费用、损失、后果等）
We can't afford to pay such a price.
He could not afford to lose his fortune entirely.
You can't afford to miss that film tonight.

(2) 买得起，出得起
He is not rich enough to afford the house.
Few people are able to afford cars like that.
I can't afford so much money.

(3) 给予；提供
The trees afford a pleasant shade.
Music affords her pleasure.
A five-day working week affords us more leisure time.