Poor:
① 贫穷的;贫寒的;清贫的
② 蹩脚的;不好的
例句:
① They were too poor to buy shoes for the kids.
他们穷得没钱给孩子买鞋穿。
② My grandpa has been in poor health for several years.
我爷爷最近几年身体不太好。
Dirt poor:
穷的泥土 ×
穷到吃土 √
例句:
I've been out of a job for half a year and I am dirt poor now.
我已经失业半年了,穷到吃土了。