Methane series
烷系
🧩 词语组成解析
methane
['meθein]
n. <化>甲烷，沼气;
🗣️ 情景例句
I reminded him to work hand.
我提醒他要用功。
I think he's no good.
我想他不行。
What are you doing, Mum?
妈妈，你在干什么？