It's a long time since they left.
他們已經(jīng)離開(kāi)很久了。
Come on, it's time we left.
快點(diǎn)，我們?cè)撟吡恕?/p>
When I left they were all still hard at it.
我離開(kāi)的時(shí)候他們都還在努力工作。
It's not for me to say why he left.
不適宜由我說(shuō)出他離開(kāi)的原因。
The university is on the left bank of the river.
大學(xué)在河的左岸。