...#124 will be ready for shipment on Dec. 7, but due to being uneconomical to ship the part alone, we hope to make delivery together with your next order...
...proprietary communication systems unattractive to their users and uneconomical to their owners. 然而，在過去十年中，這些競爭障礙已經逐漸...
...undertake a pointless venture, one that is redundant, unnecessary, superfluous, or highly uneconomical. Cf. to carry coals to Newcastle. Perhaps we have...