pilfering
v.
偷窃（小东西），小偷( pilfer的现在分词 );
偷窃（一般指小偷小摸）;
例句:
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Precautions had to be taken to prevent pilfering.
必须采取防范措施阻止偷盗行为。
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He was caught pilfering.
他行窃时被抓个正着。
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When food stores close, they go to work, pilfering food for resale on the black market.
食品店关门后，他们就行动起来，偷食品拿到黑市上出售。
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Neglect and pilfering were harder on Niemeyer's elegant contemporary palaces than the elements.
来自WSJ
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But by the time he was eighteen he had advanced from pilfering eggs and potatoes to stealing horses.
来自NEWYORKER