Toughening treatment
[化] 钢化处理
🧩 词语组成解析
v. （使某物[人]）坚韧, 坚强, 强硬( toughen的现在分词 )
🗣️ 情景例句
Mother: Marilyn. Father: Richard.
母亲： Marilyn。父亲： Richard。
We know not what is good until we have lost it.
有的时候不爱惜，失了以后空叹息。
It often rains,sometimes quite heavily. Everything grows very quickly.
常下雨，且有时下得很大。万物生长很快。