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
Hi, there!
你好！
We all do fade as a leaf.
我们都要像树叶一样枯萎。
and the trunk eventually becomes so sore that the elephant curls it up and seldom afterwards uses it for offensive purposes.
象鼻子最后疼得卷了起来，以后它就很少用鼻子去进攻了。