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。

　　The children are completely out of control since their father left.

　　這些孩子自他們的父親離開(kāi)后就無(wú)法無(wú)天了。

　　It's one of the few countries where people drive on the left.

　　這是為數(shù)不多的幾個(gè)靠左行駛的國(guó)家之一。

　　Very young children should not be left to play without supervision.

　　不能讓幼兒在沒(méi)人照看的情況下獨(dú)自玩耍。