Alkenes
(alkene 的复数) n.[化]烯烃,链烯
🗣️ 情景例句
We've been listening to you both.
我们一直在听你们朗诵。
No,she isn't.
不，她不是。
crowning the youngest girl with flowers in the spring, holding a summer festival on Midsummer Eve, giving thanks for the harvest in the autumn,
春天在河边为最年轻的姑娘戴上花冠，夏天在河边欢庆“仲夏前夜”，秋天在河边丰收而感恩，