roof of the mouth的意思|示意

This forces water through a tube formed by the tongue pressed against a groove in the roof of the mouth.

这迫使水流过一条由舌头压在上颚的沟槽部分形成的管道中。

To make this sound, my tongue comes up, but not too much because this does not touch the roof of the mouth.

发这个音时，我的舌头抬起，但不会抬得太多，因为舌根不碰到上颚。

Cleft palate: Fairly common congenital disorder in which a fissure forms in the roof of the mouth.

颚裂：一种常见的先天性疾病——胎龄两个月时颚板未能融合而遗留裂隙。