例句：

　　There's a time to work and a time to play.

　　工作、玩耍皆有時。

　　We have to set a time limit for the work.

　　我們得為這項工作規(guī)定個期限。

　　Most of us use public transport to get to work.

　　我們大多數人都乘公交車輛上班。

　　People came from all over the world to view her work.

　　人們從世界各地涌來欣賞她的作品。

　　We need to evaluate how well the policy is working.

　　我們需要對這一政策產生的效果作出評價。