| 释义 |
mass extinction noun[ U or C ] uk /ˌmæs ɪkˈstɪŋk.ʃən/ us /ˌmæs ɪkˈstɪŋk.ʃən/ the death of many animals, plants, and possibly humans, especially as a result of climate change(= changes in the world's weather caused especially by increasing levels of carbon dioxide in the atmosphere): 大规模灭绝,集群绝灭 He said Earth's atmosphere can only stay this loaded with man-made carbon dioxide for a couple more decades without changes such as mass extinction, ecosystem collapse and dramatic sea level rises. 他说,对目前这样的人为二氧化碳负荷,地球的大气层只能再承受几十年了,在这段时间内不会发生大规模灭绝、生态系统崩溃和海平面急剧上升等变化。 Biologists say five mass extinctions have occurred since life began on Earth.生物学家说,自地球生命开始以来,已经发生过五次大规模灭绝。 The Earth may be experiencing the largest mass extinction since the dinosaurs died out. Once the survey is complete, we should know if any large asteroid capable of causing global damage and mass extinction will strike Earth within the next few hundred years. With mass extinctions in the making, scientists are scrambling for ways to lessen global warming's impact. SMART Vocabulary: related words and phrases Environmental issues agroecology air pollution anoxia anoxic anti-conservation carbon capture dumping ground eco-audit eco-footprint efficiency energy conservation energy security environmental justice environmentalism reduce, reuse, recycleidiom runoff scrapyard scrubber sequester sequestration |