无奈 英语怎么说？

有许多说法啊，重要的是在句子中怎么变通的翻译出来。比如：cannot help but；have no alternative；have no choice
还有helpless；resignation；however……
例句：1.出于无奈，我们只得照要求的做了。
We had no choice but to do what we were asked.
2.I lowered it and looked up at Dad helplessly.
我放下手中的东西，抬头无奈地看着爸爸。
3."resignation" phenomenon in the modern life and its countermeasures
试析当代社会生活中的无奈以及对策

have no choice; can't help it; nothing helps

I couldn't help it.

willy-nilly