Megaperm
镍锰铁高导磁率合金
🗣️ 情景例句
What makes you feel good?
什么使你感到高兴？
The water has risen over the riverbank.
洪水溢过了防堤。
A young man and a young woman were sitting behind me.
一青年男子与一青年女子坐在我的身后，