They did it by the back door.
他们靠走后门干的。
Backdoor deals are unhealthy praethy.
走后门是一种不正之风。
She got a diamond ring under the counter.
她走后门/私下交易买了一个钻石戒指
Ms Iran: Because they to enter through the back door.
伊朗小姐：因为他们总爱走后门。
Ms Iran: Because they like to enter through the back door.
伊朗小姐：因爲他们总爱走后门。
by/through the back door; in an unfair illegal way
走后门（采取不正当不合法的手段）
Then she walked to the yard gate and stood. Then to the head of the lane.
她走到庭院门口站着,然后走到小巷口。
Faber unlocked the back door-a precaution for fast exit-before entering the hall.
费伯在进入门厅前打开后门，以备迅速逃走。
Militiamen around the door gave back to let the judges through
围在门口的民兵退后让法官们走过去。
and skating and leaping out from behind stoops and going.
滑冰，从门廊后跳出来，走着,
Hector： No, apart from forcing the back door to get into the apartment.
赫克特：没有，除了撞开后门走进套房里。
OK. Get on Chang'an Street which runs into Jianguomen.
好。你走长安街，碰到建国门之后，
When Gao Ma had left, he locked the front gate and returned to his room.
高妈走后，祥子锁好大门，回到屋中。
We used the back entrance to the building.
我们是从大楼的后门入口走进去的。
She ducked the interviewers by sneaking out the back door.
她从后门偷偷溜走, 躲开采访者。
Mary pulled strings and got us two theater tickets.
玛丽走了后门,为我们搞到了两张戏票。
Reporters intercepted him as he tried to leave by the rear entrance.
他想从后门溜走, 记者把他截住了。
She stood back, watching the door slide closed, then turned away.
她站后几步，看着门滑行关上，然后转身走了。