我向你们保证，我不会让你们失望的。

I Promise You I Will Not Let You Down.

youdao

我知道你们不会让我失望的。

I know you won't let me down!

youdao

我知道你们不会让我失望的。

I know you won't disappoint me.

youdao

我保证不会让你们失望的。

I am sure that you'll not be disappointed.

youdao

我不会做任何让你们失望或感到羞耻的事情。

I will never do anything that would make you feel disappointed or ashamed.

youdao

我不会做任何让你们失望或感到羞耻的事情。

I will never do anything that would make you feel disappointed or ashamed.

youdao