tarnish ；

[例句] 其中含有的 抗 变灰剂和亮洁剂,可避免衣物变灰暗,衣物经常光洁如新! The powerful anti - greying agent and special brighteners help to keep my clothes and clean as new!

[法] spot ；

[例句] 尼龙或许因为容易变污而不适合被穿用, 但是在洗衣机内,去污效果却相当的不错. Nylon may be nasty to wear, but It'scrubs up well inside a washing machine.

limber up，soften，limber ；

[例句] 大意是求购一种油乳液,这种油乳液能使牛皮变柔软. I want to buy fatliquor oil which can soften cow leather.

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[例句] 酒被放进栎木桶中以变陈. The wine is put into oak casks to age.

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[例句] 这个纸厂已停止把废水注入这条河, 因此现在它变干净了. The paper factory has stopped waste water the river, so it is becoming clean now.

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[例句] 泥水慢慢地变清澈了. The muddy water cleared slowly.

metamagnetism ；

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[例句] 如果你总把那凿子当螺丝起子用,就会使它变钝的. If you keep using that chisel as a screwdriver you'll take the edge right off it.

[医]carnification ；

metamorphic phase，metamorphic facies，densofacies ；

metacrystal ；

hysteresis ；

alexandrite ；

angulator ；

apodization ；

apodizer ；

blush，erubescence，redden ；

deglabration ；

electrodisintegration ；

hemivariate ；