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蓝鲸是地球上最大、最重的动物,最长的蓝鲸体长33米、体重170吨。蓝鲸的舌头上能站50个人,其心脏和小汽车一样大,出生的幼崽比一头大
Blue whales are the largest and heaviest creatures on the planet. The longest whale is 33 meters long and weighs 170 tons. Blue whale’s tongue can stand 50 individuals, the heart and the car as big, more than a big cub born