behind
单词辨析：
强调位置、时间等顺序的先后。
The dog ran after the thief.
那只狗在追赶小偷。
Tom entered the room after his girlfriend.
汤姆跟着女友进入了房间。
When will you come? Next week or the week after?
你什么时候会来？下周还是下下周？
After you.
你先请。
多表示位置和方向的前后关系，或指必须做的事情在时间上落后。
At that time she was sitting behind me.
那时她坐在我的身后。
A huge lake formed behind the dam.
大坝后面形成了一个大的湖泊。
I had to work on the weekend because I fell terribly behind.
我工作落后太多了，不得不在周末加了班。
相关例句：
We dodged behind a pillar out of sight of the tourists.
我们躲到柱子后面，避开了观光者的视线。
The rebels fled into the mountains, leaving behind their weapons and supplies
叛军丢下武器和给养，逃进了山里。
He dodged nimbly behind a tree.
他敏捷地一闪身，躲到了树后。
He came to Saudi Arabia, leaving behind his wife and their three children.
他抛下妻子和三个孩子来到了沙特阿拉伯。
The work is 22 weeks behind schedule
这项工作比计划滞后了22周。
About 1,200 personnel will remain behind to take care of the air base.
大约会有1,200人留守看管这个空军基地。