Fluoro
氟代
🗣️ 情景例句
Is that all for customs formalities?
海关检查就这些了吗？
I'd like to explain what makes this factory special.
我要向你说明本工厂的特性。
He married my aunt in 1971, so Clare would have been five years old.
他1968年与我伯母结婚，那么克莱尔应该已经5岁了。"