而农民喜爱他们是因为它们吃蚜虫和其他吃植物的害虫。
But farmers love them because they eat aphids and other plant-eating pests.
青蛙喜欢吃害虫。它们保护我们的庄稼。
吃昆虫的动物通常都有益于人类，因为它们消灭诸如蚊虫之类的害虫。
Usually the insect eaters are helpful to man, because they do away with harmful insects such as mosquitoes.
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