Heptaphyllite
七叶云母(浅云母)
🗣️ 情景例句
A dime is 10 cents. It's one tenth of a dollar.
一角有十美分，是一美元的十分之一。
Hi, Joe!
嗨，乔！
Sally was very excited because she had never travelled on a train before.
萨莉非常激动，因为她从未乘过火车。