We use service centers at major stores. They ship goods back to our national service center for repairs.
我们采用大店服务中心,他们可把产品运送到我们的国内服务中心维修。
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。