live from hand to mouth
刚好糊口
A:It was really hard for our parents to save money when they were young.
A：我们的父母年轻时攒点钱可真难啊。
B:Most people were living from hand to mouth. How could they?
B：大多数人都只能勉强糊口，他们怎能攒下钱呢?
A:Yeah. They simply had no extra money to save up or for other things.
A：对呀，他们没有多余的钱存下来，也没有多余的钱买其他的东西。
B:Fortunately, things are changing these years.
B：好在这些年情况已经有所改观了。