Casehardening
v. 使无情, 使表面硬化( caseharden的现在分词 )
✅ 同义词
🗣️ 情景例句
so they can find her owners quickly.
好让他们很快找到她的主人。
There's no need!
多此一举！
enterprising settlers unwisely introduced the European rabbit.
一些有创业精神的移民不明智地把欧洲兔子引进了澳大利亚。