plod的中文意思、音标与词形变化

n. 沉重的步伐, 辛勤工作 vi. 沉重地走, 辛勤工作, 孜孜从事 vt. 沉重缓慢地走

n the act of walking with a slow heavy gait v walk heavily and firmly, as when weary, or through mud