molar

臼齿、大牙、磨牙

The dentist said one of my lower molars needs a filling.

牙医说我下排有一颗臼齿需要补。

臼齿的

Tooth decay often begins on the molar surfaces at the back.

蛀牙常从后方的臼齿咬合面开始。

莫耳的、莫耳浓度的化学

Record the molar concentration of each solution before the test.

测试前请记下每种溶液的莫耳浓度。