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
and my friends don't want to go.
我的朋友们又不想去。
Why didn't you try again?
为什么你不再试一次？
What's the point of going to college?
上大学有何用？