vt.沉重地走；vi.沉重缓慢地行走；孜孜不倦，勤苦地工作；n.沉重缓慢的前进；沉重的踏步声； 变形： 过去式：plodded过去分词：plodded现在分词：plodding第三人称单数：plods 英英释义： plod[ plɔd ]n.the act of walking with a slow heavy gait"I could recognize his plod anywhere"同义词：ploddingv.walk heavily and firmly, as when weary, or