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
Richard, did you go to the aerobics class, really? Richard
你真的上了有氧运动课吗？
For how long?
要借多久？
It was a Sunday in May. My brother and I had decided to go off for a long walk while we were staying with my grandparents in the French countryside.
5月的一个星期天，我和弟弟决定去远足。当时我们住在法国乡下的祖父母家中。