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这句英语没有语法错误吗?

来源:学生作业帮 编辑:神马作文网作业帮 分类:英语作业 时间:2024/10/07 13:17:01
这句英语没有语法错误吗?
是剑9 test2 写作小作文的考官范文里的一句话:To sum up,although local fixed line calls were still the most popular in 2002,the gap between the three categories had narrowed considerably over the second half of the period in question.
其中【gap between the three categories】这种说法对吗?不是between用在两者之间吗,这里有3种种类在比较了啊
这句英语没有语法错误吗?
etween可以指多个的每两个之间.这里指三个的每两个之间.