a mass extinction中文什么意思

大规模毁灭

• mass:    n. 1.块，堆，团。 2.群众，集 ...
• extinction:    n. 1.(权利等的)消灭，(生物等 ...
• mass extinction:    大量灭亡; 大量消亡; 集群决灭

例句与用法

1. The cretaceous period ended about 65 million years ago , a mass extinction due to impact of an asteroid at chicxulub in mexico wiped out the dinosaurs , except for the birds
   白垩纪期间结束了大约65百万年前,许多绝种由于小行星的冲击在chicxulub在墨西哥消除了恐,除了鸟。
2. Researcher bryanlaensler of he harvard - smithsonian center for astrophysics says if the explosion had occurred much closer to our solar system , qsay just 10 light years away , it would have severely damaged the atmosphere and possibly triggered a mass extinction of living things
   哈佛史密森天文物理中心的研究员布莱恩?詹兹勒表示如果这次爆炸发生在离我们太阳系很近的距离，比如10光年远的话，它就会严重破坏我们的大气层，很有可能导致生命物种的大量灭亡。
3. Researcher bryan gaensler of the harvard - smithsonian center for astrophysics says if the explosion had occurred much closer to our solar system , say just 10 light years away , it would have severely damaged the atmosphere and possibly triggered a mass extinction of living things
   哈佛史密森天文物理中心的研究员布莱恩?詹兹勒表示如果这次爆炸发生在离我们太阳系很近的距离，比如10光年远的话，它就会严重破坏我们的大气层，很有可能导致生命物种的大量灭亡。