If you are helpless, you do not have the strength or power to do anything useful or to control or protect yourself.
例句
Parents often feel helpless, knowing that all the cuddles in the world won't stop the tears...父母經常感到無能為力，因為他們知道無論多少次擁抱也無法止住眼淚。Children are dying, and I am helpless to do anything...孩子們已奄奄一息，而我卻無力做任何事情。
英漢詞典釋義
adv.
無力地,無助地
Cold and hungry, they drifted helplessly towards the Arctic.他們又冷又餓，無助地漂向北極。She was pinned helplessly to the desk.她被按到桌子上無法動彈。Many companies have watched helplessly as their stock prices fell.股價下跌時,許多公司無能為力地看著。
無可奈何地
He shrugged helplessly and said nothing.他無可奈何地聳聳肩，什么也沒說。She watched helplessly as her husband was dragged away.她眼睜睜地看著丈夫被拉走了。