生物域即生物三域生物三域理论是近代的生物分类理论生物三域是指真细菌域( Domain Bacteria )古细菌域( Domain Archaea )和真核生物域( Domain Eukarya ) 即为三域系统( Three-domain system )
后者也有可能是因为它们属于第四大生物域。
Or it may be that they belong to a fourth domain of living organism.
如果新的生物域属实，那么它存在已达几十亿年之久，因此必有值得研究的地方。
If the new domain is real, it must have been around for several billion years, and must thus have something going for it.
2020年1月1日起，中国开始在长江的重要河域实施为期10年的禁渔令，以保护中国最长河流的生物多样性。
From Jan 1, 2020, China began a 10-year fishing ban (禁令) on important areas of the Yangtze River to protect Biodiversity (生态多样性) in China's longest river.
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