Spirane structure
[化] 螺环结构; 螺旋结构
🧩 词语组成解析
螺烷
🗣️ 情景例句
I was in the smoking section.
我原本坐在吸烟车厢的。
That nation is famous for its tourism.
那个国家以旅游业闻名。
I haven't seen him for five years.
我五年没有见到他了。