Richellite
土氟磷铁矿
🗣️ 情景例句
Thanks, Mrs. Stewart.
谢谢， Stewart太太。
In secondary school, children get more advanced knowledge.
在中学，孩子们得到更高深的知识。
On the other hand, I felt sad that I wasn't able to tell my grandparents that we were safe.
另一方面，我为不能告诉我的祖父母我们十分安全而感到难过。