趣英语 / biota造句

biota造句

They have had serious effects upon the biota of stream.
它们对河流中的生物群体产生严重影响.

The past decade has witnessed the discoveries of various important fossils from the Mesozoic Jehol Biota.
摘要最近十多年来,我国在热河生物群各门类生物研究方面取得了一系列重要的发现和成果.

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