1.marketplace n.集会场所；市场

Sifang Street is a very busy marketplace.
四方街是一个热闹的集市。

2.announce v.宣布；宣告

I hope to announce the winner shortly.
我希望马上宣布胜利者的名字。

3.behaviour n.行为；举止

Such behaviour is beneath contempt.
这种行为令人不齿。

4.similar a.类似的

The two buildings are similar on the whole.
从整体来看，这两幢楼是相似的。

5.service n.服务；发球

The volunteers for community service are doing a good job.
社区服务的义工做得很出色。