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A couple of factors are important in explaining this general pattern.
要解释这个普遍模式，两个因素是很重要的。
youdao
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What factors are most important in explaining such differences?
什么因素对于解释这些差别至关重要呢？
youdao
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What factors are most important in explaining such differences?
什么因素对于解释这些差别至关重要呢？
youdao