Selective reagent
[化] 选择试剂; 选择性试剂
🧩 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;
reagent
[ri(:)'eidʒənt]
n. 反应物，试剂;
🗣️ 情景例句
People are busy shopping and wrapping presents for relatives and friends before Christmas Eve.
在圣诞节前夜，人们忙着为亲朋好友买东西、包礼物。
Absent-minded
心不在焉
What time did you have it?
你们什么时候开的会？