)slog
艰难行进1. work doggedly or persistently
同义词：plug away, peg away, keep one's nose to the grindstone, keep one's shoulder to the wheel
2. walk heavily and firmly, as when weary, or through mud
同义词：footslog, plod, trudge, pad, tramp
3. strike heavily, especially with the fist or a bat
同义词：slug, swig
