boils
v.
（使）沸腾，开( boil的第三人称单数 );
用开水煮，在沸水中煮;
怒火中烧，异常气愤;
例句:
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Cook the sauce over a low heat until it boils and thickens.
以小火加热酱汁至其沸腾变浓。
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Way before the water boils, it churns vigorously.
来自SA
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He boils down red wine and uses what's left.
他把红酒熬稠后再用。
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What they want boils down to just one thing. It is land.
他们说穿了就是想要一样东西，那就是土地。
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This book boils it down in an age-appropriate way.
来自WSJ
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It all boils down to time follows energy.
来自SA