1、 Its tooth sharp benefit is emollient andtorn to pieces an alimental function in the mastication.
它的牙尖锐利有力,在咀嚼中起撕碎食物的作用.
来源:网络期刊摘选
2、 The grinding action of the molars requires coordinated and synchronized contraction of the muscles of mastication.
而臼齿作咀嚼动作时,需靠咀嚼肌协调而一致的收缩.
来源:互联网
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