Pericyclic reaction
[化] 周環(huán)反應
?? 詞語組成解析
a. pericycle的變形
??? 情景例句
Would you please repeat your offer again?
能否再說一遍您的優(yōu)惠？
I would like to talk to Mr. Liu.
我想請劉先生來聽電話。
This has not been easy because I own over a thousand books.
但這并不容易，因為我有1，000多本書。