Life isn't all fun; it has its bad moments,翻译: 要知道生活并非都是有趣的,它有它的不好的时刻。(1)因为fun是不可数名词,并且这里fun是形容词,因此用加S,(2)moment作为名词有五个意思。标有[C]的代表用作可数名词,既可以用单数;也可以用复数;标有[U]的代表用作不可数名词。 n. 1. 瞬间;片刻[C] Just a moment, she's coming. 请稍等,她马上来。(既可以用单数) a few moments later? 过了一会儿(也可以用复数) I just want to write about the little moments of our da...