Fluorin
n. [化]氟
🗣️ 情景例句
Yes. I have an upset stomach.
是的，我的胃很难受。
Thank you. Here's $10:00. Keep the change.
谢谢你。这是10美元，不用找了。
Everybody on board was worried and we were curious to find out what had happened.
飞机上的人都很着急，大家都急于想知道究竟出了什么事。