1、Old and young cadres learn from each other and encourage each other.
新老干部相互學習，相互激勵。

2、Communication between old and young people is not so difficult as you think
青老年之間的思想交流沒有你想的那樣困難

3、Old and young dropped in to help us with the work
老老少少都跑來幫我們的忙。

4、There are old and young at home.
上有老，下有小。

old and young翻譯