caseharden /'keis.hɑ:dn/ 📖 中文释义 vt. 使无情, 使表面硬化 📘 English Definition(英文释义) v. t. To subject to a process which converts the surfaceof iron into steel.v. t. To render insensible to good influences. ← casefy C 字母词表 casehardened →