A cup is a kind of unit. “一杯”是一种计量单位。

　　It is used to measure how much something holds. 它用来测量某物的容量。

　　One cup is equal to 8 aunces. 一杯等于8盎司。

　　It is commonly used in the United States and Japan. 它通常在美国和日本使用。

　　However, it is rarely used in the United Kingdom or the rest of the Europe. 而它却很少在英国或欧洲其他国家中使用。

　　What can you measure with a cup? 什么能用杯子测量呢？

　　Salt, milk, juice, sugar and butter can be measured with a cup. 盐、牛奶、果汁、糖和黄油都能用杯子衡量。