Nitrobacterieae

[医] 硝化菌亚科

🗣️ 情景例句

Can I have your attention, please?
请大家听我说。
A change of work is as good as a rest.
调换一下工作是很好的休息。
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。
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