degradation
n.降级；退化；衰变
释义2：
degradation
/ 7degrE5deIFEn /
◙ noun1. [mass noun] the condition or process of degrading or being degraded• 降格，降级；退化 »a trail of human misery and degradation. 人类痛苦和堕落的痕迹。 [Geology] the wearing down of rock by disintegration• [地质] 陵削，减削【语源】
1. mid 16th cent. (in the sense 'deposition from an office or rank as a punishment'): from Old French, or from ecclesiastical Latin degradatio(n-), from the verb degradare (see degrade )
俄语/英语字母转换