Podolite
碳磷灰石
🗣️ 情景例句
Many foreign friends used chopsticks when they visited China.
许多的外国朋友在访问中国的时候都使用筷子。
When it started raining, I was reading books.
当开始下雨的时候，我再看书。
That would be nice. Let's fix a date.
那太好了。我们定个日子吧。