Fluorin
n. [化]氟
🗣️ 情景例句
Come on, Sam ...
好啦， Sam……
Could you change my flight date from London to Tokyo?
请你更改一下从伦敦到东京的班机日期好吗？
Bison waste no longer fell on the ground to improve the soil, which as a result became less good for growing plants.
地上不再有野牛的粪便来改良土壤，结果对于植物生长土壤变得不够肥沃了。