Fluorate
氟酸鹽
??? 情景例句
Don't get ahead of yourself.
別做你力所不能及的事。
A tree is known by its fruit.
觀其行而知其人。
I have more than you. Do I have fewer apples than you? Let me see!says Jim.
“我的蘋果比你的多。”“我的蘋果比你的少嗎？讓我看看！”吉姆說。