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it was not until.did.和it was not until .that.

来源:学生作业帮 编辑:作业帮 分类:英语作业 时间:2024/05/11 19:18:39
it was not until.did.和it was not until .that.
这两个有什么区别
这两句话在意思上基本没有区别.
it was not until .did...后面跟的是倒装句
例子:it was not unitl 1911 did they find the first of the vitamins.直到1911年他们才发现了第一种维生素.
it was not until...that...后面跟的是从句
例子:It was not until 1911 that the first of the vitamins was identified.\x09直到1911年才发现了第一种维生素.
你可看出,两个句子意思没有区别,只是表达方式的改变~