回答

・I fell asleep before I knew it.
・I fell asleep without being aware of it.
・I was sleeping without knowing it.

有各種各樣的表達方式。

I fell asleep before I knew it.
不知不覺就睡著了。

I fell asleep without being aware of it.
不知不覺就睡著了。

I was sleeping without knowing it.
不知不覺就睡著了。

fall asleep　入睡
before I knew it　不知不覺中
be aware of　意識到～，察覺到

有幫助｜0