undercharged
v.
少收钱( undercharge的过去式和过去分词 );
未给（枪等）装足火药;
对…充电不足;
例句:
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EDF said some customers had been over or undercharged.
来自THETIMES
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The shop assistant has undercharged us.
售货员向我们要价很低。
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He had the impression that they always undercharged him.
他觉得他们总是少算了帐.
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He undercharged me two dollars for the wine.
我买这瓶酒他少收了我两美元.
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Lou had increasing financial problems yet...she often undercharged her patients.
来自A. Livingstone