Bararite
氟硅铵石
🗣️ 情景例句
We are.
我们是。
Kind words are worth much and cost little.
口头方便不费力。
My daughter, Jane, never dreamed of receiving a letter from a girl of her own age in Holland.
我的女儿简从未想过会接到荷兰一位同龄姑娘的来信。