Selective hardening
[化] 局部淬火
?? 詞語組成解析
selective
[si'lektiv]
adj. 精心選擇的;選擇的，不普遍的;淘汰的;
n. 硬化, 淬火\\n[計] 硬化, 固化, 淬火
??? 情景例句
who have made my stay in the United States so wonderful.
是你們使得我在美國的生活如此多采多姿。
Idleness is the key of beggary, and the root of all evil.
懶惰是行乞的敲門磚，是萬惡的根源。
Oh! It looks much better now.
噢！現在似乎好看多了。