thirties

剑桥词典

A person's thirties are the period in which they are aged between 30 and 39
三十多嵗
My brother is in his thirties. 我弟弟三十幾嵗。
 the thirties

the range of temperature between 30° and 39°
（溫度）三十多度
The temperature is expected to be in the thirties tomorrow . 明天溫度預計爲三十幾度。
the decade (= period of ten years ) between 30 and 39 in any century , usually 1930–1939
三十年代
My grandparents fled Germany in the thirties. 我的祖父母在30年代逃離了德國。 返回 thirties