Selective stain
[医] 选择性染剂
🧩 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;
🗣️ 情景例句
Usually a house is too expensive for the salary-earning class to buy.
通常房屋太贵，工薪阶层买不起。
Your shoe lace is loose.
你的鞋带松了。
You must always return your library book on time!
你必须按时归还图书馆的书！