他整个下午都在房间里闷闷不乐地晃悠。
He ___moped around the room all afternoon.
他整个下午都在房间里无精打采地闲逛。
He spent the whole afternoon ___moping around his room.
她买了一辆轻便摩托车用于短途通勤。
She bought a ___moped for her short commute.
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