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1、there is no one but.(没有人不......)
例句:there is no one but longs to go to college.
翻译:没有人不渴望上大学。
2、since s 过去式,s 现在完成式
例句:since he went to senior high school, he has worked very hard.
翻译:自从他上高中,他一直很用功。
3、so 形容词 be 主词 that 句子(如此……以至于……)
例句:so precious is time that we can’t afford to waste it.
翻译:时间是如此珍贵,我们经不起浪费它。