Alkene
[ ['ælki:n] ]
高中 Senior High
n. [化]烯烃,链烯
🗣️ 情景例句
It's over.
结束了。
We'd like to know your availability and conditions of sale of this line.
我们想了解一下你方在这方面的供货能力及销售条件。
One of the most colourful figures in boxing history was Daniel Mendoza, who was born in 1764.
拳击史上最引人注目的人物之一是丹尼尔。门多萨，他生于1764年。