鳄鱼就是这样清洁牙齿的。
河马群突然亮出了牙齿，我所能看见的就是鳄鱼不断地被这些大嘴咬了又咬。
The island of hippos suddenly erupted with teeth and all I could see was the crocodile being repeatedly crushed in their huge mouths.
太阳下，一条有着锋利的牙齿和张着浅黄色大口的小鳄鱼在不远处趴着，对他们视而不见。
A little way off the crocodile lay blinking in the sun, with his sharp teeth and whity-yellow jaws wide open.
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