Fluoric
a. 氟石的, 从氟石获得的, 氟素性的
🗣️ 情景例句
Sorry to hear that, Lillian.
很遗憾听到这个， Lillian。
After dinner sit a while, after supper walk a while.
午饭后要坐，晚饭后要走。
The days get longer and the nights get shorter.
白天变长了，黑夜变短了。