高二英语语法分析It took more than two decades,though,until 1951,for regul_英语解答

高二英语语法分析
It took more than two decades,though,until 1951,for regular colour TV broadcasts to begin in the USA.这里边,For和to都是作什么成分啊?

人气：314 ℃　时间：2020-06-28 20:09:18

解答

这句话可以这样看,把逗号隔开的部分先去掉,It took more than two decades for regular colour TV broadcasts to begin in the USA.也就是,It took 一些时间 for sth.to do sth.这样的话,for 和to 的成分就很明显了...