"unable to act for oneself," c. 1200, from help (n.) + -less. Related: Helplessly; helplessness. In Middle English and later sometimes also "unable to give help, affording no help" (late 14c.), but this was never common.
权威例句
1. Children are dying, and I am helpless to do anything.
孩子们已奄奄一息,而我却无力做任何事情。
2. Oh, to think of his poor wife, standing there helpless.
噢!想想他可怜的妻子,无助地站在那里。
3. They are not merely helpless victims.
他们并非无助的受害者。
4. the helpless victims of war
无助的战争受害者
5. The other team was helpless and we had a real field day.