I don’t doubt that he can finish the task on time．

There is no doubt that they will agree with you on this matter．

汉译英．

空气是看不见的，但有风时，我们能感觉到它的运动。

__________________

Will the car hold out till we reach London?

We were short of water but could hold out for another day．

In 24 hours the general had entirely put down the rebellion．

The bus stopped to put down some passengers．

Put down the knife before you hurt somebody!

Many species have now vanished from the earth．

When I turned around, she had vanished．