1. They were unwanted now, unusable, so to say, unprofitable and so they were dying of sheer loneliness. 他们现在是多余的，没用的，或者说是没有价值的并且他们正在孤独中死亡。
2. Sometimes, though, we can't buy insurance for certain risks on the marketplace—usually because companies find it unprofitable. 尽管有时我们不能在保险市场上购买到某些保险——一般来说因为保险公司觉得无利可图。
3. After months of being unprofitable, the siblings made the difficult decision to close shop, leaving their 55 employees -- many who have worked there for more than 35 years -- out of work. 几个月的入不敷出之后，三兄弟忍痛割爱，决定关掉餐厅，55位员工就此丢掉了工作──他们很多是工龄超过35年的老员工。
英英解释
adj.
1. producing little or no profit or gain
2. not worth using
3. without profit or reward
