Peter wields the keys of the kingdom of heaven and can open and shut the doors of personal salvation, just as he can open and shut the doors of the church.

彼得挥舞着通往天堂极乐的钥匙,他可以任意打开关闭，凡人可借此得救的大门，正如他可以任意操控通往教会的大门一样。

耶鲁公开课 - 弥尔顿课程节选

The doors literally slam shut at night.

每晚城门都会"砰"地被关上

耶鲁公开课 - 欧洲文明课程节选

You have a nice grid pattern and you can use a city block metric to add up the number of blocks between people's doors.

整个城市呈格网状,你可以数数,人们相隔多少个街区。

耶鲁公开课 - 心理学导论课程节选