n.无可奈何；无能为力
It gave him a strange feeling of responsibility and helplessness. 这使他产生了一种奇怪的责任感而又无可奈何。
She felt the flow of the tide of effort and interest--felt her own helplessness without quite realising the wisp on the tide that she was. 她尽管并没完全意识到自己像浮在生活大潮上的一棵小草，却充分体会到自己的孤苦无依，无可奈何。
Tom signaled his helplessness to Mary by shrugging. 汤姆耸人耸肩向青玛丽不无能为力。
