Annelation
[化] 增环反应; 成环; 成环反应
🗣️ 情景例句
It's mostly young people who take part.
参加活动的绝大多数是年青人。
My parents speak English perfectly.
我的父母能流利地说英语。
Where would you keep them?
你把鱼放在什么地方？