Slipstone
n. (磨半圆凿的)成型油石
🗣️ 情景例句
You are twenty-one, a grown-up young lady old enough to make up your own mind.
你已经21岁了，已经到了可以自己做主的年龄了。
Hurry back!
快去快回！
Did you telephone Li Lei?
你给李磊打电话了吗？