Diethylidene
[化] 二亚乙基; 2-丁烯
🗣️ 情景例句
She has now held the post of Prime Minister longer than anyone else this century.
她现在担任首相任期之长在本世纪是前所未有的。
When all men speak no man hears.
人人都讲话，无人去听它。
His words are strongly impressed on my memory.
他的话深深地铭记在我的心头。