Butanediylidyne
[化] 丁二次基
🗣️ 情景例句
That's amazing!
太令人吃惊了，真棒！
That's all for today.
今天就讲到这里。
Well,you mustn't play in the road.It's dangerous. A car may hit you.
嗯，你不可以在路上玩球。那是很危险的。汽车会撞着你。