be killed 后加什么

1、The law of the jungle demands: kill or be killed.丛林法则要求的是：杀戮或者被杀。

2、Their captors told them they would be killed unless they cooperated.抓住他们的人说如果他们不配合就杀掉他们。

3、Are you out of your senses? You'll be killed!你疯了吗你会丢了性命的！

➕by 和名词，表示动作的发出者。例如

The tiger was killed by the Russian hunter.