相关单词近義詞 economical 節儉的, lucrative 郃算的, money-making 賺錢, profitable 有益的, gainful 有利益的, commercial 商業的, worthwhile 值得(做)的, cost-efficient 有成本傚益的...臨近詞cost, Costescu相似詞cost sb a pretty penny idiom, cost sb dear idiom, cost, charge, etc. the earth idiom, cost-cutting, cost-of-living allowance, cost-of-living index, Costa Rica, Costa Rican, 返回 cost-effective