鼹形鼠：一种毛皮的，短肢、无尾瞎鼠，科的打洞的啮齿动物之一，发现于东欧和中东。
Any of several furry, short-limbed, tailless burrowing rodents of the genus Spalax, found in eastern Europe and the Middle east.
水豚一种巨大的半水栖啮齿动物（水豚），产于南美洲的热带地区，四肢短小，尾已退化，身体长达1。
A large semiaquatic rodent(Hydrochoerus hydrochaeris)of tropical South America, having short limbs and a vestigial tail and often attaining lengths of more than1.2meters(4feet.
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