She is under an obligation to her adoptive mother.

她有义务赡她的母。

She is under an obligation to her adoptive father.

她有义务赡她的。

We are under an obligation to help.

们有义务帮忙。

I have an obligation to look after her.

有义务照顾她。

I have a duty to perform.

有一种义务要。

It is the supp liers respon sib ility to en su re that the w arehou se receives the p roduct undam aged.

供应商有义务保证入库的产品没有损坏。) 这段文是太长 表现在笔记上可以是: all= sam no≈ no× ifw ri。