恐血症
blood phobia; hemophobia
空穴来风
lit. wind from an empty cave (idiom); fig. unfounded (story); baseless (claim)
空穴来风未必无因
wind does not come from an empty cave without reason; there's no smoke without fire (idiom)
北京航空学院
Beijing Aeronautical and Astronautical Institute (abbr. to 北航院)