Precisely what elements are involved is not entirely clear.
究竟是什么因素导致哮喘病还不完全清楚。
It's important to know what elements of the forecast are subject to error.
知道预报的哪部分容易出错是重要的。
What elements prove it is real?
你怎么证明它是真的?
What elements must a good piece of calligraphy have?
一幅好的书法必须包括哪些因素?。
What elements of personality are most likely to leave traces?
个性中的哪些成分最有可能留下痕迹呢?
What elements of personality are most likely to leave traces?
个性中的哪些成分最有可能留下痕迹呢?
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