例句：
There's a time to work and a time to play.
工作、玩耍皆有时。
We have to set a time limit for the work.
我们得为这项工作规定个期限。
Most of us use public transport to get to work.
我们大多数人都乘公交车辆上班。
People came from all over the world to view her work.
人们从世界各地涌来欣赏她的作品。
We need to evaluate how well the policy is working.
我们需要对这一政策产生的效果作出评价。