Afraid to knock on any door, I crept close to a tree in an empty corner lot and fell into the sleep of exhaustion.

胆小的我不敢去敲响那些陌生的房门，只好跌跌撞撞地走近街角的空地，蜷缩在一棵树旁，疲惫地睡着了。

youdao

Your competitor has built a 12" thick steel door between the customer and any source of value. Knock gently on the door.

你的对手却在客户和有价值信息之间建起了一道12英寸厚的铁门。

youdao

When I am working, don't knock on my door. Never interrupt me. Not for any reason.

我在做事时，别敲我的门，绝对不要打断我，不管什么理由，不行就是不行。

youdao