Cahnite
[矿]砷硼钙石
🗣️ 情景例句
how you see the building being used.
你们计划如何使用这栋建筑。
How much is a one-way ticket to Beijing?
一张到北京的单程票要多少钱？
Now, this is the chemistry lab. Have you been in this lab before?
好啦，这是化学实验室。你们以前到过这个实验室吗？