1 [C] (also passageway) a long, narrow way with walls on either side that connects one place with another 通道；走廊: a secret underground passage 一条秘密地下通道

2 [C] a tube in your body which air, liquid, etc can pass through （人体内的）道: the nasal passages 鼻腔

3 [C] a short part of a book, a speech or a piece of music （书、演说、乐曲的）段，节: The students were given a passage from the novel to study. 老师从小说中抽出一段给学生研读。

4 [sing] the process of passing 通过；经过；消逝；过去: His painful memories faded with the passage of time. 随着时间的流逝，他痛苦的回忆也渐渐消失了。