Nitrocalcite
钙硝石
🗣️ 情景例句
When do you think you can return with street performances?
你觉得何时可以带来街头表演艺术的摄影？
What college are you attending?
你在哪里上学？
Growth, however, brings new problems and concerns.
不过，发展也带来了新的问题和顾虑。