Butylidene ethylene
[建] 丁叉乙烯
🧩 词语组成解析
[化] 1,1-亚丁基
n. 乙烯\\n[化] 乙烯; 1,2-亚乙基
🗣️ 情景例句
Particularly in the construction field.
特别是在建筑业。
I am sorry you feel sad.
抱歉，让你伤心了。
Both men had just begun to swim towards the shore, when they noticed with dismay that the speedboat was moving in a circle.
两个人刚开始向岸边游去，就突然惊愕地发现快艇正在转着圈行驶，