Biodegrading
v. 生物递降分解( biodegrade的现在分词 )
🗣️ 情景例句
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Accidents will happen in the best regulated families.
即使家规严，丑事总难免。
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。