Diethylidene
[化] 二亚乙基; 2-丁烯
🗣️ 情景例句
It's the language of human relationship that is based on trust, openness, and understanding.
那就是基于信任、开放、和理解的人际关系的语言。
The builders are already making plans.
建筑家们已经在着手计划了。
Yes, Miss Yang, said Meimei.
“是的，杨小姐，”梅梅说