Magnetoflex
铜镍铁永磁合金
🗣️ 情景例句
We're going to miss you.
我们也会想念你的。
The electric fan is out of order.
这电风扇出毛病了。
In 1929, three years after his flight over the North Pole, the American explorer, R.E.Byrd, successfully flew over the South Pole for the first time.
美国探险家 R。伯德在飞越北极3年之后，于1929年第一次飞越了南极。