Just pour 2 cups of powdered milk and 1 can (14 oz.) of condensed milk into a bowl. This recipe should make about 80 candies. The mixture may be a little thick and hard to mix together, so have patience and a thick and sturdy spoon. Add 1 tablespoon of margarine to the mixture; alternately, you can use real butter. This will help add an extra creamy flavor to the treat. Mix it in with the other ingredients. Choose the shape you'd like for your pastillas; they can be circular, or they can be more cylindrical, like Tootsie Rolls. Just use your hands to give them their desired shape; you can wear gloves if you want to. Place the shaped candies on a plate. Pour half a cup of sugar on a plate. Make sure that all part are covered. You can cut the cellophane in advance to get the desired shape. Then place the pastillas in the cellophane and wrap the ends of it. Put the candies on a party plate and enjoy. You can have them for dessert or serve them as a snack whenever you like.

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Write a summary of the previous text in Chinese:
把奶粉和炼乳倒入碗内。 混合奶粉和炼乳。 加入人造黄油。 造型，把奶糖捏成圆形或圆柱形。 在盘中倒白糖。 让白糖包裹在软糖上。 用玻璃纸包装牛奶软糖。 食用。