stay up

• • 熬夜，不睡觉：

    We stayed up late to see the film on television.

    我们迟迟不去睡觉，以便看电视上播放的影片。

    Shall we stay up till he comes?

    我们熬夜等他回来吗?

  • 停留(或保持)在上面；不掉下，不沉没：

    I'm surprised that some of these ancient buildings stay up so long as they do.

    我很惊讶，这些古老的建筑竟然还能矗立在那里。

    Put on your lifejacket, which would help you to stay up if you fall out of the boat.

    穿上救生衣。这样在你万一从船上跌到水里时，它会帮助你不沉到水下去。

  • 保持留在原位：

    The playbill has stayed up for a week, but no man notices it.

    那张海报挂在那里已有一个星期了，可是没有人去看它一眼。