?灭绝
... 灭绝 die out; become extinct 率 rate; ratio; proportion 灭绝 die out; become extinct 灭绝净尽 totally exterminated; 现已灭绝的动物 extinct animals; 一个物种的灭绝 the extinction of a species; 许多物种由于我们破坏了它们的自然环境, 现在正面临灭绝的危险。 many species are in peril of extinction because of our destruction of their natural habitat ...