I have never felt more helpless.

我从未感到比此刻更加无助。

youdao

You've helped me so much in the past, and now that I'm more helpless than ever, you're going away!

过去你给了我那么多的帮助，现在我比任何时候都需要帮助，可你却要走了！

youdao

Few things make you feel more helpless than sitting blank-faced at a screen, looking at a flashing cursor and a message saying "PASSWORD INCORRECT" in a disapproving tone.

面无表情地呆坐在屏幕前，盯着上面不断跳动的信息“密码错误”，很少有事情能像这样让你感觉更无助了。

youdao

Stress is more likely to be harmful if you feel helpless to deal with the problem or situation that causes the stress.

VOA: special.2009.03.24

"Fears about 'brand bullying' are much stronger in the UK. Parents seemed to feel much more helpless, " said Dr Nairn.

BBC: UK families face consumer pressure, says report

Within a few days they were broken hulks, emaciated and covered in sores, more helpless than the original camp inmates.

ECONOMIST: Tibet

As the Wolves wall jumped he drilled the ball low and hard and it scudded into the corner with the unsighted Hahnemann no more than a helpless observer.

BBC: Fulham 2-1 Wolves