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。