Channel stection
[机] U形剖面
🧩 词语组成解析
🗣️ 情景例句
No.
不。
Death pay all debts.
一死了百债。
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。