Slipstone
n. (磨半圆凿的)成型油石
🗣️ 情景例句
When I came here,
当我初到这，
What number should I dial to get the operator?
我应该拨什么号码找到接线员？
The old woman thought he was a queue jumper.
老太太以为他是不按次序排队的人。