help的形容词无用的

　　He lay helpless on the floor.

　　他无助地躺在地板上。

　　The audience was helpless with laughter.

　　观众情不自禁地大笑。

　　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。

　　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。