Spiro[4.5]decane
[化] 螺[4.5]癸烷
🗣️ 情景例句
I didn't quite catch your name.
对不起，我没听清楚你的名字。
I don't know how I can thank you enough.
我不知道怎样谢您才好。
I think you probably know China has adopted a flexible policy in her foreign trade.
我想你也许已经了解到中国在对外贸易中采取了灵活的政策。