Halogenating agent
[化] 卤化剂
🧩 词语组成解析
🗣️ 情景例句
It's shaping up.
进展顺利。
Who is he?
他是谁？
'Your sister will be here in less than an hour and we must be at the station to meet her.
“再有不到一个小时你姐姐就要到这儿了，我们得去车站接她。