Selective hardening
[化] 局部淬火
🧩 词语组成解析
selective
[si'lektiv]
adj. 精心选择的;选择的，不普遍的;淘汰的;
n. 硬化, 淬火\\n[计] 硬化, 固化, 淬火
🗣️ 情景例句
Always remember to wash your hands before eating.
用餐前谨记要洗手。
A little neglect may breed great mischief.
小不忍则乱大谋。
Yes, that's right. Good!
对，正确，很好！