Hexadiyne
[化] 己二炔
🗣️ 情景例句
They're open.
店开着。
How much will all this cost?
一共要花多少钱呢？
They would have continued to struggle against economic odds and would have lived in obscurity.
这家人会继续为克服经济上的拮据而奋斗，并默默无闻地活下去。