obliged
adj
1 [pred 作表语]
~ (to sb) (for sth/doing sth) grateful (to sb) for performing some service 受恩惠而感激(某人)
I´m much obliged to you for helping us. 非常感激你帮助了我们.
2 (idm 习语) much o`bliged thank you 多谢
`Much obliged,´ he said as I opened the door for him. 我给他开门时他说了一声`多谢'.