Slipstone
n. (磨半圆凿的)成型油石
🗣️ 情景例句
I don't want to interrupt her school year.
我不愿意打断她这个学年。
Could you give me an indication of the price?
您能提供一个参考价吗？
the necessary method of study is to group the relevant material and to take note of all possible variant forms and conditions.
应采取的研究方法是，把有关各方面的材料汇集起来，同时注意任何可能出现的异常情况和条件。