niggles
v.
为小事操心，吹毛求疵( niggle的第三人称单数 );
不断地烦扰;
例句:
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But there's something in the familiar surety of her rejection that niggles.
来自THETIMES
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She keeps house industriously and frugally and niggles over every detail of each bill.
她勤俭持家对每张账单的每一项目都仔细核查.
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You can let the odd knocks and niggles out of the body.
来自BBC
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It also complained of "lots of niggles" with the software.
来自THETIMES