low-life是什么意思？生活在最底层的，当然也就是所说的“下等人、落魄潦倒的人。”

1.John is such a low-life that he sleeps on the park bench and drinks booze all day.
约翰真是落魄潦倒，他睡在公园长凳上，而且整天喝酒。

2.I don't want you hanging about with that low life down at the night club.
我不希望你在夜总会里沦落成为一个名声极坏的人。

3.Black, Mexican - American and American Indian elderly all have a low life expectancy than whites, due to their socioeconomic disadvantages.
黑人、美籍西哥人、美国印第安人的老人,由于他们社会经济上的不利地位,估计寿命都低于白人。