在这山上，没有血灾、蛙灾，和虱灾。
At this mountain, we have no plagues of blood, frogs, and lice.
除了对跳蚤和虱类有效，还可否杀寄生虫？
科学家们昨天宣布他们发明了一种类似吹风机的装置能够在半小时内清除虱子和虱卵。
Researchers said yesterday that they had developed a blow-dryer-like device that appears to get rid of lice and their eggs in a single half-hour session.
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