| 单词 | crackerjack |
| 释义 | crackerjack /krak"euhr jak'/, Informal. n. 1. a person or thing that shows marked ability or excellence. adj. 2. of marked ability; exceptionally fine. Also, crackajack. [1890-95, Amer.; earlier crackajack, rhyming compound based on CRACK (adj.); -a- as in BLACKAMOOR; JACK1 in sense "chap, fellow"] |
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