1.无利可图的
2.不能赢利的
3.不合算的
1.giving you no pleasure or satisfaction
1.Simply existing or continuing in an unhappy and unrewarding relationship can be one of the most miserable experiences anybody can face.
只要继续在现有的或不愉快和吃力不讨好的关系可以是一个最悲惨的经历任何人都可以面对。
2.Mr Zhao said he had had an unrewarding life in Australia since he arrived from China in 2000.
赵先生说，自从他2000年来到澳洲后，他的生活了无生趣。
3.The only constant in my unruly, if not altogether unrewarding life, was the depression.
在我不断变化的生活里唯一不变的除了一无所成之外，就是忧郁症。
4.Markets today would not tolerate unrewarding and risky investment on this scale.
今天的市场不会容忍没有回报又如此高风险的投资。
5.Such parts are often considered to be thankless, unrewarding.
这种角色通常被认为是吃力不讨好的。
6.Lectures often seem very formal and empty things ; recitations generally prove very dull and unrewarding .
讲座给人的感觉常常是非常正式且言之无物；背诵总是非常的枯燥且徒劳无益。
7.Some find the New Moon fosters a reflective stillness, others an urgency to clear away unrewarding elements of the past.
有些人认为新月会产生一次安静的反思，另外则认为是对过去一些没有意义的事情的一次迫在眉睫的清理。
8.(It has become) an economically not unrewarding enterprise.
（它已成为）经济上收入不菲的行业。
9.Yet over the past year or two, I have found my obsession increasingly unrewarding.
但近一两年来，我发现自己的这种执著已变得越来越不值得。
10.Fasting and praying for souls, for the country and for others may seem "unrewarding" , but in God's eyes, it is very precious!
为了灵魂、为了国家、为了别人而禁食祷告，仿佛没有什么报酬，但在神眼中却看为宝贵！