Euxenite
n. 黑稀金矿
🗣️ 情景例句
We want to keep customers happy.
我们必须让顾客满意。
Stamp-collecting is a popular hobby.
集邮是一种普遍的业余爱好。
Education, with its cycles of instruction so carefully worked out,
教育，以其教学周期如此精心地安排，