英语词源
- unthrifty (adj.)
- late 14c., "unprofitable, useless," from un- (1) "not" + thrifty (adj.), or else from Middle English noun unthrift "profligacy," late 14c., earlier "evil practice, wicked act" (c. 1300).
权威例句
- 1. At the time of sale, the obviously sick and unthrifty animals are usually excluded.
- 在出售时, 剔除明显的病和僵牛.