Diethylidene
[化] 二亚乙基; 2-丁烯
🗣️ 情景例句
I know that area.
我知道那地方。
Our packing charge includes $1 for the drum, which sum will be credited on return.
包装费中有1美元是包装桶的费用，此费用在桶还给我们时可退回。
In time, it became an accepted fact the Cox brothers employed a conscientious ghost that did most of their work for them.
随着时间的流逝，考科斯兄弟雇了一个尽心尽责的鬼，他们家的活大部分都让鬼给干了，这件事成了公认的事实。