Acetylidene
异乙炔
🗣️ 情景例句
Hi, Mr. Stewart.
嗨， Stewart 先生。
I'm cooking.
我在做饭。
As soon as I went outside, I forgot all about Madam Bellinsky because my wife hurried towards me.
我一走出帐篷，就把别林斯基夫人给算卦的事忘得一干二净了，因为我的妻子正匆匆向我跑来。