Hexynoic acid
[化] 己炔酸
🧩 词语组成解析
🗣️ 情景例句
He has a big sales office in Los Angeles,
他在Los Angeles有一个大的销售办事处，
Where is the boarding gate for this flight?
这班飞机的登机门在哪儿？
Sorry! I think we had them for lunch. We must get some more tomorrow.
对不起！我想我们中午吃掉了。我们明天得再买一些。