Also, the valves close with a great deal of impact, which may crack or break the valves and scuff the camshaft and followers. 此外，气门关闭撞击力大，可能撞裂或撞碎气门，并擦伤偏心轮轴和随动机构。
The surface gloss had begun to crack. 表面的光彩已经开始衰退了。
Many small businesses smashed up during the slump. 许多小企业在经济衰退时破了产。
Family problems made him crack up. 家庭问题弄得他精神崩溃了。
Financial stress is making me crack. 经济上的压力在使我崩溃。
They should have been put up to the enemy sabotage. 本来应该有人告诉他注意提防敌人的破坏。
It was his drinking that busted up their marriage. 是他的酗酒行为破坏了他们的婚姻。
美
[k'ræk'ʌp]
