例句：
I am a seeker after truth.
我是一名真理的追求者。
After the revolution, anarchy ruled.
革命以后，無政府主義大行其道。
She died shortly after giving birth.
她生下孩子后不久便死了。
What's the idea behind this?
這背后的意圖是什么？
The sun went behind a cloud.
太陽躲在了一朵云的后面。
He crouched behind a low hedgerow.
他蹲在一排低矮的灌木籬后面。