来源:
圆形牙齿是指牙齿的形状是圆的,这是由于牙齿的发育过程中有一个叫做 "牙齿轮廓线" 的东西,这个轮廓线决定了牙齿的形状。
英文例句及其中文翻译:
The prehistoric species had round teeth for grinding plants. (这种史前物种有圆形的牙齿来磨碎植物。)
The animal's round teeth were designed for shredding its prey. (这种动物的圆形牙齿是为了撕碎它的猎物而设计的。)
The pttle boy had round teeth because he was still losing his baby teeth. (这个小男孩有圆形的牙齿,因为他还在掉他的乳牙。)
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