1·Her hair was crawling with lice.
她的头发上爬满了虱子。
—— 《牛津词典》
2·For a shirt verminously busy, yon soldier tore from his throat with oaths. Godhead might shrink at, but not the lice.
因为衬衫满是虫，那个士兵扯开嗓子咒骂起来。上帝可能会退缩，但虱子不会。
3·His clothes were crawling with lice.
他的衣服上爬满了虱子。
4·Debate remains as to why this happened, but the most plausible explanation is that when modern humans began to live in larger groups, our hair filled with more and more ticks and lice.
关于为什么人类的毛发消失，还有很大的争议，但是目前最可信的解释就是当现代人开始在大集体中生活，我们的毛发会滋生大量的虱子。
5·But they do not (as, for example, lice do) live on their hosts continually. Once a bird fledges, therefore, it leaves its parasites behind.
但是它们不会一直寄生在它们的宿主身上(虱子才会)，当鸟儿羽翼丰满时，鸡蚤就会离开。