let you know

基本解释

If you have a good business idea, your customers will let you know.
如果你有一個很好的商業想法，你的顧客會讓你知道的。
This brief article will let you know why you have bad habits as well as how you can break those bad habits.
這篇簡潔的文章會讓你知道，爲什麽你會有壞習慣，同時也讓你知道如何打破那些壞習慣。
If a user gives you fifty requirements, he should also let you know how important each one is relative to the others.
如果一個用戶給你五十條需求，他也應該讓你知道其中每一條跟其他相關的比起來重要度如何。

Sergeant Perry Osburn put it this way: "We cannot let this make us afraid, you know what I'm saying?
So, many of you are new to the Boston area, now I still realize, and I want to let you know it's not required that you be a Red Sox fan to be at MIT.
你們中很多人新來到波士頓地區，現在我仍認識到，我想讓你們知道在麻省理工學院,不一定必須做一個紅襪隊的球迷。
麻省理工公開課 - 化學原理課程節選
To figure out even what this thing is, let alone how to use it properly. So, you know, I'm sympathetic.
就連認出這是什麽東西（都很睏難），更別說正確應用它了，所以我很同情這點。
經常犯的失誤 - SpeakingMax英語口語達人

We're asking around for possible details and will let you know if we hear more.
ENGADGET: blogger-avatar