occlusal half

• 牙合二分之一

occlusal half的用法和样例：

例句

1. Just under half of all mar-riages end in divorce.
   几乎二分之一的婚姻是以离婚收场。
2. The Pacific covers almost half to the total ocean area.
   太平洋几乎占去整个地海洋面积的二分之一。