as one door closes, another opens

(proverb)you shouldn't be discouraged by failure, as other opportunities will soon present themselves

(谚)一扇门关闭的同时，另一扇门又打开了；不应该为失败所挫，因为还会有别的机会出现

at the door

on admission to an event rather than in advance

当事情临近（而非提前）

tickets will be available at the door.

到要走时还可以买得到票。

close (或 shut) the door on (或 to)

exclude the opportunity for

拒之门外；排除…的机会

she had closed the door on ever finding out what he was feeling.

她不愿了解他的感受。

(from) door to door

from start to finish of a journey

旅行从开始到结束

the trip from door to door could take more than four hours.

全部旅程要四个多小时。

visiting all the houses in an area to sell or publicize something

挨家挨户推销（或宣传）

he went from door to door selling insurance policies.

他挨家挨户地推销保单。

[as modifier]a door-to-door salesman.

一位逐门逐户推销的推销员。

lay something at someone's door

regard someone as responsible for something

将…归责于

the failure is laid at the door of the government.

失败归咎于政府。

on the door

monitoring admission to a building or event

看门

the uniformed commissionaires on the door.

穿制服的门卫在看门。

open the door to

create an opportunity for

为…打开大门；为…创造机会

her research has opened the door to a deeper understanding of the subject.

她的研究为更深入了解这个问题创造了机会。

out of doors

in or into the open air

在（或去）户外

food tastes even better out of doors.

在户外食物味道更好。

at (one's) door

Within one's sphere of accountability.

职责：在某人的责任范围之内

close the door on 或 shut the door on

To refuse to allow for the possibility of

拒绝：使没有可能

The secretary of state closed the door on future negotiations.

国务卿使得即将的谈判无法进行

leave the door open

To allow for the possibility of

保留可能性

Let's leave the door open for future stylistic changes.

我们得考虑到将来改变风格的可能

show (someone) the door【非正式用语】

To eject (someone) from the premises.

撵出：把（某人）赶出某建筑物

To terminate the employment of; fire.

不再雇佣；解雇