In spite of the considerable work as China has done in its campaign to control smoking and use of tobacco, the situation of smoking control still remains grim.
as这里是关系代词,在定语从句里面指代的是the considerable work,所以它在定语从句里面应该做宾语吗?
as China has done in its campaign to control smoking and use of tobacco
这里as有比较意义,就像。。。那样,所以这是比较分句作名词修饰语。as并不是关系代词。如果把as改为that,则that为关系代词,引导定语从句。此时就没有比较意义了。
不过传统语法可能会把as解释为准关系代词,引导定语从句。如果你没有学过现代语法,就这样理解也可以。
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