Emmonite
钙菱锶矿
🗣️ 情景例句
I'd like to make an appointment to discuss a question.
我想约个时间讨论个问题。
As a sign of friendship, Gordon and Peter clasped hands.
为了象征友谊，高顿和彼德互相握手。
It was very old and precious even then.
却使在当时，它也属历史悠久的珍奇之物。