@chargrille @j_g_allen It's odd really, because for a while he was pushing ventilation (it's his academic speciality). What is the purpose of ventilation other than to reduce transmission?
@Chargrill@j_g_allen这真的很奇怪，因为有一段时间他一直在推动通风（这是他的学术专长）。除了减少传播之外，通风的目的是什么？