Through the screen installed at a corridor door, visitors can use software to talk to the hosts via mobile phone or landline. Even if they are not at home, hosts can also open the door for visitors.

楼道门口安装的显示屏，通过APP软件接通家庭成员的手机或固定电话，即便不在家，也可与来访者可视对讲，或者为来者开门。

youdao

Just then she heard feet almost running down the corridor and her door opened and the nurse came in.

就在这时，她听到有人沿着走廊，几乎是跑着地过来，她的门开了，奶妈走了进来。

youdao

Go to the end of this corridor, turn left, and it's the third door on the right.

走到这条走廊的尽头，左转，右边第三个门就是。

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Finally, he stumbled down the corridor and out the front door, trying to catch his breath.

NEWYORKER: Trial by Fire

But visit Rockwell's Engineering Lab 36, down a tiled-floor corridor and behind a nondescript door.

FORBES: Magazine Article

In the mathematical world, he would walk down a long corridor, opening one numbered door after another.

NEWYORKER: Town of Cats