例句：
I came up with this dumb idea.
我想出了这个愚蠢而恼人的主意。
She's laid up with a broken leg.
她因腿部骨折卧床养病。
Jo doubled up with laughter.
乔笑弯了腰。
He continued working up until his death.
他一直工作到去世。
I often stayed up until two or three in the morning.
我经常熬夜到凌晨两三点钟。
Don't give up until you have exhausted all the possibilities.
只要还有可能就别放弃。
Everyone got up on stage to do a turn.
每个人都登台表演了一个小节目。
The police are building up a picture of the incident stage by stage.
警方正逐步摸清那次事件的经过。
