Oxyfluoride
氟氧化物
🗣️ 情景例句
You're clueless.
你真无知。
Ouch! I fell down and cut my knee!
好痛呦！我跌倒割伤了膝盖！
After breakfast, I sent the children to school and then I went to the shops.
早饭后，我送孩子们上学，然后就去了商店。