不过，我们还应该考虑到，这篇文章讨论的主题是火灾发生率，也就是火灾的数量，而不是排放的规模。
However, we should also take into consideration that the article is mainly discussing fire incidence and occurence, meaning number of fires and not the size of emissions.
在上周的节目中我们讨论了在艾滋病发生率高的国家是否应该进行强制性艾滋病检测的问题。
Our last week's program we debated whether it should be a compulsory HIV testing in countries with high rate.
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