求翻译：4、将步骤(3)的材料倒入汤锅，加入红酒、热水、鸡精和土豆块，没过所有材料，水沸之后汆一下，捞出杂质和浮沫，之后转小火，盖盖慢煮1个多小时，直至牛肉软烂；是什么意思？

4, the step (3) of the material into the soup pot, add wine, water, chicken and potato pieces, not all the material, after the boiling water, boil, remove impurities and floating foam, then turn a small fire, cap slowly cook more than 1 hour, until the beef soft rot;