Collusite
硫钒锡铜矿
🗣️ 情景例句
It was very thoughtful of you to send flowers.
你送花来，想得真周到。
Did you go to the school last night?
你昨晚去学校了吗？
We visited the Great Wall. We went there by bus. We all took some food and drink with us.
我们参观了长城。我们是坐车去的。我们每人都自备一些食物和饮料。