uneconomical造句

1、It would be uneconomical to send a brand new tape.
送一个新磁带去不划算。

2、I was taken in by the salesman - the car turned out to be uneconomical and unreliable.
推销员欺骗了我——那辆汽车结果既不经济又不牢靠。

3、It soon proved uneconomical to stay open 24 hours a day.
每天24小时营业很快就证明是不经济的。