Fibroferrite
纤铁矾
🗣️ 情景例句
No, let's wait till Robbie gets back from the airport.
不要。我们等Robbie从机场回来吧。
Thank you.
谢谢。
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。