Alkynes
[化] 炔烃
🗣️ 情景例句
Just got back. It's good to see you both again.
刚刚回来。真幸运再次见到你们二位。
The typewriter is out of order.
这打字机出毛病了。
Sun Huilin is Chinese, Peter is Australian, Lynn is from Greece and I'm from Britain.
孙辉林是中国人，彼得是澳大利亚人，林恩是希腊人，我是英国人。