失光
参考答案：
织物湿加工时，纤维内染料、涂料粒子等使光散射，纤维失去光泽。
________ you like to learn to play ping-pong?[ ]
A. Can
B. Would
C. Are
Saving or reducing expenditure in business is（）
A.Save money
B.Increase cost
C.Cost planning
D.Cost control
