cut现在分词

　　例句：

　　She cut her finger on a piece of glass.

　　一块玻璃把她的手指头划破了。

　　You need a powerful saw to cut through metal.

　　切割金属需要用功率大的锯。

　　She had fallen and cut her head open .

　　她摔了一跤，把头磕破了。

　　He cut four thick slices from the loaf.

　　他从一条面包上切下四厚片。