| 单词 | crackerjack |
| 释义 | crack·er·jack I. also crack·a·jack 1. < a good student and a crackerjack on the football field > < the humor she was a crackerjack at — Saul Bellow > 2. < a crackerjack of a book — Fitzhugh Green > II. also crackajack < a crackerjack revolver shot > < a crackerjack bicycle > |
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