passage/ 'pæsɪʤ /

1.noun [c] 
(corridor) 走廊

2.noun [c] 
(in book,speech,piece of music) 段

3.noun [c] [解剖] 
通道

4.noun [u] 
(movement,progress) 通过

5.noun [c] 
(on boat) (journey) 航行

to clear a passage (through sth)
(从某事物中)开出一条路
the passage of time
时间的推移