set a young

例句：

1. 1.She set the table for dinner.
   她为晚餐摆好了桌子。
2. 2. The teacher set a timer for the experiment.
   老师为实验设定了时间。
3. 3.We need to set a goal and work towards it.
   我们需要设定一个目标并为之努力。