perai
n. [鱼]水虎鱼（产于南美产的一种小鱼）
词形变化
perais
复数
perais
释义与例句
n.
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1.
Alternative form of pirai (“piranha fish”).
A perai itself, if wounded by any chance, is at once attacked and devoured by its fellows. If a monkey or bird, when shot, falls in the water, perai rush together from all quarters and carry off the prey before the sportsman can reach it, […]