弹冠相庆的解释 [flick cap to express joy;congratulate each other over their new appointments and honours] 弹除冠尘,以示庆幸。比喻喜得出仕为官,可贺可庆 详细解释 《汉书·王吉传》 ：“ 吉 与 贡禹 为友，世称...