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If you say that an action, a method, or a product is uneconomical, you mean that it does not make a profit.
unprofitable
It would be uneconomical to send a brand new tape.
发一盘崭新的磁带过去无利可图。
雅思英语词汇收录8785个雅思英语词条，基本涵盖了全部常用雅思英语词汇的翻译及释义，是英语学习的有利工具。