n. 无可奈何,无能为力

Helpless \Help"less\, a.
1. Destitute of help or strength; unable to help or defend
one's self; needing help; feeble; weak; as, a helpless
infant.

How shall I then your helpless fame defend? --Pope.

2. Beyond help; irremediable.

Some helpless disagreement or dislike, either of
mind or body. --Milton.

3. Bringing no help; unaiding. [Obs.]

Yet since the gods have been
Helpless foreseers of my plagues. --Chapman.

4. Unsupplied; destitute; -- with of. [R.]

Helpless of all that human wants require. --Dryden.
-- {Help"less*ly}, adv. -- {Help"less*ness}, n.