词汇：unprofitable

adj. 没有利润的；无益的，没有用的

相关场景

57. Don't double down on unprofitable ideas.
>> If I'm 16.what high-value skills should I learn now.
57.不要在无利可图的想法上加倍努力。
Because profitable just with your friend, will also break with you because of the unprofitable.
>> 直觉是你的导师