Catakytic cyclization
[建] 环化环化
🧩 词语组成解析
n. 环合, 环的形成\\n[化] 环化
🗣️ 情景例句
Hello, who's speaking, please?
喂， 谁在讲话？
For ￡300 to London, the commiossion is 3, please.
汇款300英镑到伦敦，费用为3英镑。
It's a long story.
说来话长。