问题描述：
They found conditions that could have permitted the fan to pull the virus up into the air system of thebuilding.
请问THAT后面的是虚拟语气吗 这一句应怎么样翻译
请问THAT后面的是虚拟语气吗 这一句应怎么样翻译
问题解答：
我来补答展开全文阅读