Schuilingite
铜铅霰石
🗣️ 情景例句
What is it?
是个什么样的计划？
Thank you for your inquiry, but we cannot make you an offer right now because we are presently unable to obtain appropriate materials.
谢谢贵方询价，但我们不能马上发盘，因为目前我们得不到合适的原料。
He did not know from which part of Africa his ancestor had come.
他不知道祖先来自非洲的什么地方。