The man cut off a branch from the tree.
那个男人从树上剪下了一根树枝。

By that date East and West Prussia were cut off from the Reich.

那时东西普鲁士同帝国的联系已经被切断。

He cut off a bunch of grapes to entertain us.

他剪下一串葡萄招待我们。

※Disease, enemy, and debt --these three must be cut off as soon as they begin to grow. 病，仇与债这三者，一露苗头就砍掉。
※Lose not time; be always employed in something useful; cut off all unnecessary actions. 不要浪费时间，做些有益的事情，停止一切不必要的行动。