Giant pandas have large molar teeth and strong jaw muscles for crushing tough bamboo.
为咬碎坚韧的竹子，大熊猫有大的磨牙牙齿和强壮的颚肌肉。
But lizards are small, and they have delicate teeth, so it is very difficult for them to eat and chop off very tough material.
但蜥蜴是很小的，它们只有脆弱的牙齿，因此它们很难取食和咀嚼非常粗硬的材料。
Giant pandas have large molar teeth and strong jaw muscles for crushing tough bamboo.
温暖水域中有着又长又尖的无牙颚部的巨大猎用鱼。
Their skins are tough and they have very sharp teeth.
他们的皮肤很粗糙，长着非常尖利的牙齿。
They launch the products and services that win customers in the teeth of tough competition.
他们在激烈竞争中推出的产品和服务总能赢得客户。
Also, dogs who chew on tennis balls can wear down their teeth on the tough outer fuzz.
并且狗在咬球的时候球身上的毛会磨损它的牙齿。
Also, dogs who chew on tennis balls can wear down their teeth on the tough outer fuzz.
并且狗在咬球的时候球身上的毛会磨损它的牙齿。
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