Davidite
铀钛磁铁矿, 铈铀钛铁矿
🗣️ 情景例句
Hi, this is Mike Johnson.
嗨， 我是Mike Johnson。
better early than late.
宁早勿迟。
The idea that modern art can only be seen in museums is mistaken.
那种认为现代艺术只能在博物馆里才能看到的观点是错误的。