Vinylidene
n. [有化] 亞乙烯基；乙烯叉
??? 情景例句
And you didn't exercise?
你沒有參加健身操？
Did the chicken come before the egg?
先有雞還是先有蛋？
My name is Kate Green. I am English. I am seven.
我的名字是凱特格林，我是個英國人，七歲了。