Pentyne
戊炔
🗣️ 情景例句
We've been listening to you both.
我们一直在听你们朗诵。
What's the capital of your country?
贵国首都是哪儿？
I was so excited that I wanted to tell the whole world what we had found.
我激动得想要告诉全世界我们发现了什么。