随信附上早先您寄来的I - 20表格，请接受我对您给予我的一切帮助表示真诚感谢。

Enclosed is the I-20 form, which you sent me earlier. Lease accepts my sincere appreciation for all the assistance you have given to me.

youdao

请接受我对您以前给予的帮助表示衷心感谢。

Please accept my sincere appreciation for all the assistance your have rendered me.

youdao

请接受我对您以前给予的帮助表示衷心感谢。

Please accept my sincere appreciation for all the assistance your have rendered me.

youdao