Landscape fragmentation is one of the major reasons drastic degression loss of biodiversity over the world.景观破碎化是生物多样性下降的最主要的原因之一.PD's clinical characters are thrillingness, muscle rigidity , bradykinesia and the de...

n.渐减，递减，下降...

degression的音标：degression的英式发音音标为：[dɪ'greʃən]degression的美式发音音标为：[dɪ'greʃən]...