Ethacetic acid
[化] 丁酸; 正丁酸
🧩 词语组成解析
🗣️ 情景例句
I mean...my brother'll be really glad to see you!
我的意思是我哥哥见到你会非常高兴。
What size shoes do you wear?
你穿的鞋子是什么尺寸的？
suggested an idea on which he had been working for many years to the British Government and industrial circles.
他向英国政府和工业界提出了他研究多年的一项计划。