Fluooxycolumbate
氟氧铌酸盐
🗣️ 情景例句
No, she doesn't know Harry Bennett and his daughter Michelle.
不，她不认识Harry Bennett和他女儿Michelle。
Did you use to go fishing with friends?
过去你常和朋友钓鱼吗？
Certainly! I'm coming now, Mum!
当然可以，妈妈，我马上就来。