要求下面一段话的翻译.语法,主要词组,===.最好有点延伸Unluckily,the delegate felt so sleeply that he soon fell asleep without realizing that he had left his passport and the draft of his speech in the taxi.

要求下面一段话的翻译.语法,主要词组,===.最好有点延伸Unluckily,the delegate felt so sleeply that he soon fell asleep without realizing that he had left his passport and the draft of his speech in the taxi.