Octaoxacyclotetracosane
[化] 八氧杂环二十四烷; 24-冠-8; 24-冠醚-8
🗣️ 情景例句
Affectionately, Uncle John.
爱你的，约翰叔叔。
How much does packing take up of the total cost of the goods?
包装占货物总成本的百分比是多少？
The petrol had nearly all been used up.
汽油几乎已经用光。