31. Unlike typical thunderstorms that flare up and move by rapidly, train echo rains grind away along a single track without let up. 32. "We're going to grind away at him until we accomplish the military objectives, or until our political leaders tell us to halt," 33. The dual rulings were a major blow to Bush, his hopes of a quick certification dashed as Gore's recount campaign grinds away . 34. Opportunity planned to use its rock abrasion tool to grind away on a feature called " Flat Rock " over the weekend. 35. Its teeth were flattened and could grind away at the leaves and young branches before digesting them at length in its large gut. 36. Messier said, " but it was great to see some of the younger guys like Aleksei Kovalev and Darren Langdon grind away ." 37. But the majority of players grind away week in and week out, always trying to make a cut, constantly concerned about exempt status. 38. The six-wheeled robot had been scheduled Thursday to grind away a tiny area of the weathered face of a sharply angled rock called Adirondack. 39. The Americans continued to grind away at the defenders in the Battle of Hurtgen Forest ( September 19, 1944 February 10, 1945 ). 40. A wood saw effectively grinds away at the wood, but I think this saw might be working by impacting its teeth with the glass.
