1. If the term sounds unscientific to 20th-century ears, let us remember there is a definite connection between marshy lands and malaria, and that the naming of the disease itself perhaps represents a praiseworthy effort of observation.
    尽管对20世纪的人来说，“坏空气”一词听起来不科学，我们应该记得沼泽地和疟疾之间有着肯定的联系，因此，“坏空气”一词自身也许代表着一种值得称道的观察。