带上房间钥匙和身份证，然后关好房间的门并锁上。

Take your room key and ID, close and lock the door to your room.

youdao

他提醒她，他得在她离开后锁上厨房的门并插上门闩。

He reminded her that he would have to lock and bolt the kitchen door after her.

《柯林斯英汉双解大词典》

要是他们将来在生活中遇到一扇隐喻的门，比如某个机会的到来，会怎么样呢？他们是不是不会打开门并抓住机会，而是凝视着它，想知道“假如它不是一扇门，将会怎么样？”

What if later in life they come to a metaphorical door, like an opportunity of some sort, and instead of opening the door and taking the opportunity, they just stare at it and wonder, "What if it isn't a door?"

youdao

I'm not working alone here, but we have three teaching fellows who are affiliated with the course, two of which are here today.

我并不是一个人讲授这门课,有三位助教,与我并肩战斗,今天有两位在这里

耶鲁公开课 - 生物医学工程探索课程节选

If someone comes to your home and says, I would like to sell you life insurance.

如果有个人敲开你家的门并对你说,我是来向您出售人寿保险的

耶鲁公开课 - 金融市场课程节选

This does not mean it is a class you wish to be taught, nor does it mean that it is the right class for you.

可能这门课并不是你希望的那样，也可能并不适合你。

哈佛公开课 - 幸福课课程节选