单词 | degradation |
释义 | degrade /di-grādˈ/transitive verb
To decompose ORIGIN: OFr degrader, from L dē down, and gradus a step. See grade degrādˈable adjective Able to decompose chemically or biologically degradation /deg-rə-dāˈshən/ noun
degrādˈed adjective
degrādˈing adjective
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