1. perform vt. 执行; 履行; 表演
例句:Resolve to perform what you ought; perform without fail what you resolve.
该做的一定要做,要做的一定要做好。
2. contain vt.牵制; 包含
例句:Does this box contain biscuits?
这个盒子里有饼干吗?
3. infectious adj.传染的; 有传染性的
例句:Their enthusiasm was infectious.
他们的热情有感染力。
4. delay vt.耽搁; 延期,推迟
例句:OK. But don't delay too long. Or that trip will be all booked.
好,但不要拖太久,否则会订满的。
5. announce vt.宣布; 述说; 声称
例句:Please announce to the children that there will be no school this afternoon.
请通知孩子们今天下午不上课。