thirties
pl.三十几;三十多岁;三十年代
例句
She's in her mid-thirties—thirty-six to be exact.
她三十五岁左右—确切地说是三十六岁。
《牛津词典》
It's sometimes hard to imagine how bad things were in the thirties.
有的时候很难想像三十年代的情况有多糟。
《柯林斯英汉双解大词典》
Mozart clearly enjoyed good health throughout his twenties and early thirties.
莫扎特显然在二十几岁和三十刚出头时身体很好。