mellows
v.
（使）成熟( mellow的第三人称单数 );
使色彩更加柔和，使酒更加醇香;
例句:
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A tart temper never mellows with age.
凶悍的性情,绝不会因为年龄增长而变得温和.
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Wine mellows with age.
酒陈则味醇.
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The effect is not overbearing and mellows the metallic theme of the new building.
来自THETIMES
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Their sourness mellows upon cooking, so you may not need to add as much sugar as you thought to a dish.
来自BBC
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Closer Black Trees mellows the mood, its keyboard washes soothing the burns caused by the sparks of preceding tracks.
来自BBC