Uncracked hydrocarbon
[化] 未裂化的烃
🧩 词语组成解析
a. 未裂开的, 无裂缝的
🗣️ 情景例句
I majored in economic and trade English.
我主修的是经贸英语。
What were you doing when I called you on the telephone?
当我打电话给了你时，你正在做什么？
George studied medicine in his youth.
乔治年轻时学过医，