let ... down

I know , I know I've let you down.

我知道，我知道，我让你失望了

I am not going to let you down.

我不会让你失望的。

I won't let you down.

我不会让你失望的。

If you let me down...

如果你让我失望。。

I'll never let you down.

我不会让你失望的。

let sb. down：让某人失望

175 .let sb do sth 让某人做某事 | 176. Let sb down 让某人失望 | eg : We shouldn't let our farents down 我们不应该让我们的父母失望

let sb. down：使... 失望

turn down 拒绝;关小;调低 | let sb down 使... 失望 | bring about 导致;产生;发生

let sb. down：使某人失望

(9)would rather ... than ... 宁愿......也不愿...... | (10)let sb. down 使某人失望 | (11)in public 当众,公开的

let sb. down：让某人失望 如

My father has given up smoking. 我爸爸已经放弃吸烟了. | 27. let sb. down 让某人失望 如: | Don't let your mother down. 不要让你的妈妈失望.

l Let sb. down：让某人失望

l give sb. a hand:帮某人一把 | l on sb.'s back:找某人的麻烦 | l Let sb. down:让某人失望