Alkene
[ ['ælki:n] ]
高中 Senior High
n. [化]烯烃,链烯
🗣️ 情景例句
You sound like something's bothering you, Susan.
听起来好像你有什么心事， Susan？
Good-bye, cruel world.
永别了，残酷的世界啊。
Convinced of the importance of education,
深深懂得教育的重要性，