我试着敲了敲后门，但没人回答。

I tried knocking at the back door, but nobody answered.

youdao

如果前门锁着，就敲后门试试。

If the front door is locked, try knocking at the back door.

youdao

如果前门没有人听到，你就试试敲后门。

Try knocking at the back door if nobody hears you at the front door.

youdao

如果前门没有听见你敲门，就试试去敲后门吧。

Try knocking AT the back if nobody hears you AT the front door.

youdao

如果前门没人听见你敲门，可以敲后门试一下。

You can try sleeping on your back as a cure for snoring.

youdao

如果前门没人听见你敲门，可以敲后门试一下。

You can try sleeping on your back as a cure for snoring.

youdao