英语小问题in one’s...s 是指10岁以上的吗?那刚刚十岁怎么表达?in one’s ten 吗?

英语常用语句In one's twenties那 in one's ten?怎么说 ten的形式 我见过 给忘了 求回答 in one‘s twenties是在某人20几岁时,那in one’s twenty 是在某人20岁时的意思吗 是in one's hand还是in one's hands in one's early twenties和in one's late twenties意思是一样的吗?为什么一个是 在某人二十多岁的时候的英语表达中,in one's 20's和in one's 20s哪个对,还是两个都对? in one's mind's in one's family in one's search In one's own in one's free in one's hour in one's field