sit up

短语

大学

坐起, 端坐, 熬夜, 诧异

词形变化

sit ups 复数 sat up sits up 三单 sits up sitting up sitting up 现在分词 sat up 过去式 sat up 过去分词

1.

To assume a sitting position from a position lying down.

不及物

Despite being cancer-ridden, Lorin sat up to greet the visitors.
2.

To sit erect.

不及物

Sit up straight, mister!
3.

To show sudden interest or surprise.

不及物

He sat up when we mentioned the increased pay package.
4.

To bounce, especially to a comfortable height.

体育
5.

To not go to bed (notionally remaining in a sitting position).

I sat up all night waiting for her to come home.
6.

For a young lady to open her house for several successive nights for any visitors who wish to pay their respects.

印度历史

动词

wake

From Middle English upsitten (“to sit up”).

来源：wiktionary