Alkene
[ ['ælki:n] ]
高中 Senior High
n. [化]烯烃,链烯
🗣️ 情景例句
Do you frequently surf the net?
你经常上网吗？
You can see for yourselves the damaged condition and the reason why they are unassailable.
你们可以亲眼看到完好无损情况以及货物无法销售的原因。
I'd like to know how you reached your conclusions.
我想知道你们是如何得出结论的。