I am extremely grateful to all the teachers for their help.

我非常感谢所有老师的帮助。

《牛津词典》

Tell her we are grateful, Dickon—extremely grateful.

狄肯，告诉她我们很感激——非常感激。

youdao

Erin had gone beyond what almost anyone would have done, finding my house on a bitterly cold night, and for that I was extremely grateful.

艾琳做了几乎任何人都不会做的事情，在一个严寒的夜晚找到了我家，为此我非常感激。

youdao

She told VOA she is extremely grateful for the P&G "Thanks Mom" program.

VOA: standard.2010.02.20

The community spirit is something the farmers are extremely grateful for, said Mr Kennaugh.

BBC: Isle of Man farmers to receive emergency support

After the rescue he said the two sailors "were quite shaken but extremely grateful".

BBC: RNAS Culdrose rescue helicopter

"I am extremely grateful for the trust people have shown in me, " he said.

BBC: Wales