不经济的

例句：

1. 1.I can't afford to buy a new car right now.
   我现在买不起新车。
2. 2. The cost of living is too high for many people to afford.
   对于许多人来说，生活成本太高，负担不起。
3. 3. She could not afford the expensive medical treatment.
   她付不起昂贵的医疗治疗费用。