Perfluoroallene
[化] 全氟丙二烯
🗣️ 情景例句
Oh, he's adorable!
哦 ，他可爱极了。
Look over to the southeast and you can see the con stellation of Orion.
眺望东南方向，你就可以看到猎户星座。
The temperature will stay above zero in the day-time, but at night it will fall below zero again.
白天气温保持在零度以上，但夜间仍会降至零下。