in his mid 30s 这是几岁?how old is "mid 30s"?

in his mid 30s 这是几岁?how old is mid 30s? in his mid-20's He's in his mid-fifties,well,fifty-six,to be后面是to be e_______ his early to mid-30s这句该怎么翻译? She's in her mid Highs in the mid 50s and lows in the upper 30s.这句话怎么翻译 be in his mid-thirties其中his有何作用, in one s mid thiries 翻译 in the mid 1810's怎么翻译 in the mid-60s什么意思 in his early 30's in the mid-1990s 和 by the mid-1990s有什么区别? 英语翻译Highs in the upper 50s 这是说高温 最高温度50度的意思?Lows in the mid 30s.这是低温 最低温度30度的意思?Lows in the upper 30s 那这个是 低温 最高温度30度的意思?有点晕 是不是跟我理解的一样? 英语翻译RT还有：popular since the mid 70sintroduces in the mid 80s in one's twenties 是在某人二十几岁,那么在某人十几岁用英语怎么说 temperatures in the mid-to high 20's什么意思ornado warnings are in forece with high winds and temperatures in the mid-to high 20's这句话什么意思 英语翻译John had played a lot of football as a teenager and as a young man.He was mainly injury-free,but in his mid-30s he started have trouble with his left knee.While working in the garden at home one day,he felt something tear inside the knee. 在他四十几岁的时候英语是 in his forties 那请问在他几岁的时候英语怎么说啊