The movie was a letdown.那电影真令人失望.He found himself completely unable to suppress a sense of disappointment, of letdown.他感到自己有一种完全无法抑制的受挫和失望的感觉.It's really a letdown to let Tom join us.让汤姆加入我们真是一件扫兴的事情....

n.松劲，减低，减退，松弛...

letdown的音标：letdown的英式发音音标为：['let'daʊn]letdown的美式发音音标为：['lɛtˌdaʊn]...