protrusion

protrusion的英语例句

1. a protrusion on the rock face

   岩石表面的突起部分

2. Thumb - sucking can cause protrusion of the teeth.

   经常吮吸拇指能使牙齿向外突出.

3. He grabbed at a protrusion of rock with his right hand.

   他用右手抓住了一块凸起的岩石。