Plumboferrite
铅铁矿
🗣️ 情景例句
Where do I register for classes?
我在哪儿登记我上的课？
This window is just as wide as that one.
这扇窗户就象那一个一样宽。
employing full-time technicians and run on specially-written software.
雇用专职的技师，而且得用专门编写的软件才能运行。