Ferroselenium
硒铁
🗣️ 情景例句
Is this the Pete Waters farm?
这是Pete Waters的农场吗？
I learned grammar this afternoon.
我今天下午学语法。
As the time and cost of making a chip drop to a few days and a few hundred dollars,
由于制造一块芯片的时间已缩短至几天，费用也只有几百美元，