when the snow falls,为什么是 falls 而非 fall 或者……?句子：When the snow falls,it traps little bubbles of atmosphere.为什么是 falls?而非 fall?可否变为 is falling?

When snow falls,it comes down from the sky.为什么用falls , when the snow falls,为什么是 falls 而非 fall 或者……?句子：When the snow falls,it traps little bubbles of atmosphere.为什么是 falls?而非 fall?可否变为 is falling? when the love falls是什么意思 求when the love falls 简谱! When The Empire Falls的《Hollow》 歌词 catch snow as it falls怎样解释?紧急fur will catch snow as it falls and hugely improve visibility.this comes in handy when climbing mountains. when the night falls的歌名是什么?when the night falls And you are alone 英语试题2Glaciers begin to form------more snow falls during the winter than melts and evaporates in the summer.A is whenB when there areC whenD when does为什么选C 不是B when the tree falls,the monkeys scatter的意思 When the tree falls,the monkeys scatter什么意思 When the three falls,the monkeys scatter.是一条谚语 1.The little snow that falls in Antarctic never melts.翻译, 英语翻译I will love you,For all the years to pass by!Only when the mountains lose their ridgesThe rivers run dry The thunder rumbles in winterThe snow falls in summerAnd the earth is combined with the sky Will my love for you pos When the boy falls into the water,whats the first thing he wll do?谜语 When the curtain falls ,I turn to you and smile .When the curtain falls ,I turn to you and smile .麻烦翻译下! When snow f_______,it comes down from the sky.^ ^） When snow f_____,it comes down from the sky. When The Snow Comes Down In Tinseltown 歌词