thirty
pron, det 30; one more than twenty-nine 30, 三十(个). =>App 4 见附录4. thirty, n
1 [C] the number 30 *30; 三十.
2 the thirties n [pl]
numbers, years or temperature from 30 to 39 从 30 到 39 的数目、 年数或温度.
3 (idm 习语) in one´s thirties between the ages of 30 and 40 在 30 岁到 40 岁之间. For the uses of thirty and thirtieth see the examples at fifty, five and fifth. 关於 thirty 和 thirtieth 的用法见 fifty、 five 和 fifth 词条中的示例.