Cardiopericarditis
[医] 心心包炎
🗣️ 情景例句
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谢谢 。
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让我看看。
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。