He lay helpless on the floor.
他無(wú)助地躺在地板上。
The audience was helpless with laughter.
觀眾情不自禁地大笑。
Oh, to think of his poor wife, standing there helpless
噢！想想他可憐的妻子，無(wú)助地站在那里。
Children are dying, and I am helpless to do anything
孩子們已奄奄一息，而我卻無(wú)力做任何事情。