sit up

verb

1. not go to bed

e.g. Don't stay up so late--you have to go to work tomorrow
We sat up all night to watch the election

Synonym: stay up

2. change to an upright sitting position

e.g. He sat up in bed

1. 坐起来;坐直
If you sit up, you move into a sitting position when you have been leaning back or lying down.

sit up在线翻译

e.g. Her head spins dizzily as soon as she sits up.
她一坐起身来就感到天旋地转。

2. 使…坐起身来;让…直起身子
If you sit someone up, you move them into a sitting position when they have been leaning back or lying down.

e.g. She sat him up and made him comfortable.
她帮他坐起身来，好让他舒服一点。

3. 深夜未睡;熬夜
If you sit up, you do not go to bed although it is very late.

e.g. We sat up drinking and talking...
我们饮酒谈天，直至深夜。
e.g. I didn't feel like sitting up all night.
我不想熬通宵。

4. 突然关注;警觉
If something makes you sit up, it makes you suddenly pay attention to what is happening.

e.g. A defeat like that makes you sit up and think.
那样的一次失败会令你警觉起来，开始思考。

5. see also: sit-up