late 15c., from Latin degressionem (nominative degressio) "a going down," noun of action from past participle stem of degredi "to go down, march down, descend," from de- "down" (see de-) + gradus "step" (see grade (n.)).
双语例句
1. To observe mosquito larva density degression rate , both hydrophytes and fishes death rate.
同时观察水生植物和鱼类的死亡等影响因素.
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2. 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.
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3. PD's clinical characters are thrillingness, muscle rigidity , bradykinesia and the degression of independence ability.
