slate

n.板岩, 石板, 石片, 蓝色
adj. 暗蓝灰色的, 含板岩的
v. 铺石板

I've no change, could you put these eggs on the slate?

我没零钱，能把这些蛋钱记在帐上吗？

The falling slate sliced into his arm.

落下来的一块石片划破了他的手臂.