Calciborite
钙硼石
🗣️ 情景例句
Will I have to wait for a long time?
我得等很久吗？
I did Math this morning.
我今天早上做算术。
You see, we've been in China for over two years now, so we are travelling back to England soon for a holiday.
您知道，我们到中国已有两年多时间了，所以不久后我们就要回英国度假了。