Liebigite
铀钙矿
🗣️ 情景例句
Can I call you sometime?
我能给你打电话吗？
When are visiting hours over?
探病的时间到几点为止呢？
There's no need for that. We'll have dinner another time.
不必为那件事惭愧。我们改个时间再共进晚餐吧。