harped
vi.
弹竖琴（harp的过去式与过去分词形式）;
例句:
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The teacher harped on at the student for being late.
老师因学生迟到而喋喋不休.
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She harped the Saint - Saens beautifully.
她用竖琴很完美地演奏圣桑的作品.
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This is what makes the show clever and transgressive, though the cleverness is harped on a little too much.
来自NEWYORKER
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Same with our mother, who had, in the last ten years of her life, had harped on the refusal of loosing quality of life.
来自NEWYORKER