Only a bit of string looped round a nail in the doorpost held it shut.

仅凭一小段绕在门框钉子上的绳子将门关住。

《柯林斯英汉双解大词典》

I knocked my head on the doorpost and hurt it.

我的头撞在门柱上，碰破了。

youdao

I knocked my head against the doorpost and hurt it.

我的头撞在门柱上，碰破了。

youdao

I knocked my head against the doorpost and hurt it.

我的头撞在门柱上，撞伤了。

youdao

I knocked my head against the doorpost and hurt it.

我的头撞在门柱上，撞伤了。

youdao