v.以沙砾覆盖(某物),撒沙砾于( grit的过去式和过去分词 );咬紧牙关;
例句:
We gritted our teeth through the tough times.
我们咬紧牙关渡过了难关.
She gritted her teeth, and held her hands in the same position.
她咬咬牙, 然后把手举到同样的位置.
He gritted his teeth together.
他紧咬牙齿.