I felt obliged to ask them to dinner.

我不得不请他们吃饭。

《牛津词典》

I'm much obliged to you for helping us.

承蒙相助，本人不胜感激。

《牛津词典》

The President was obliged to concede power to the army.

总统被迫把权力让给军队。

《牛津词典》

But anyone can file charges of lese majeste, and police are obliged to investigate.

VOA: standard.2010.07.06

The very structure, in fact, of Milton's poem here is what Dr. Johnson would be obliged to call a remote allusion.

约翰逊称弥尔顿这首诗的结构,是遥远的幻境是不得已的。

耶鲁公开课 - 弥尔顿课程节选

So given all of the controversies raging around the question of the proper government of the church, and Milton is deeply invested in these matters, Milton feels obliged to do something.

因此考虑到对应当来领导教会的适当政府的问题,所引发的相当争议，弥尔顿已经深深的陷在这些事务里，无法脱身了，他觉得自己需要做些什么。

耶鲁公开课 - 弥尔顿课程节选

They say the president was constitutionally obliged to inform the country before deploying the military.

BBC: South Africa's Marikana miners return to work

When everybody who is anybody in tech feels obliged to attend its trade show.

FORBES: Tipping Point Alert

RDAs are obliged to consult, or, in a larger way, by having an elected assembly.

ECONOMIST: Regional government