Perco hf alkylation
[建] 培柯氟化氢烷基化
🧩 词语组成解析
[医] 铃(72号元素)
n. 烷化作用, 烷化\\n[化] 烷基化; 烷基取代
🗣️ 情景例句
She is dying to know where you've been.
她极想知道你到哪去了。
The plane has crashed.
飞机失事了。
Did you pay by check or cash?
你用支票还是现金？