If in fact some people take longer to seroconvert why does it matter what a piece of paper says or does not say or who approved what?
如果是这样的话，一些需要更长时间转血清化的人为什么会在意这个文件说什么或者是谁说的。
If in fact some people take longer to seroconvert why does it matter what a piece of paper says or does not say or who approved what?
如果是这样的话，一些需要更长时间转血清化的人为什么会在意这个文件说什么或者是谁说的。
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