1N-COUNT [num NOUN]盎司（英国和美国的重量单位，1磅合16盎司，1盎司等于28.35克） An ounce is a unit of weight used in Britain and the USA. There are sixteen ounces in a pound and one ounce is equal to 28.35 grams. 盎司（英国和美国的重量单位，1磅合16盎司，1盎司等于28.35克）
...four ounces of sugar. [+ of]
4盎司糖
2N-SING 少许；少量；一点点 You can refer to a very small amount of something, such as a quality or characteristic, as an ounce . 少许；少量；一点点
If only my father had possessed an ounce of business sense. [+ of]
要是我父亲有一点点经商的头脑就好了。
I spent every ounce of energy trying to hide. [+ of]