Spirane structure
[化] 螺环结构; 螺旋结构
🧩 词语组成解析
螺烷
🗣️ 情景例句
when I was about eighteen years old.
那时我差不多十八岁。
I'd like to change this ticket to the first class.
我想把这张票换成头等车。
616 Lincoln Drive
林肯街616