cracker /ˈkrækə/ n. ［c］1. 饼干：I'm not really hungry—I'll just have some crackers.我不太饿——吃几块薄脆饼干就行了。2. 爆竹：There was a cracker beside every place at the table.桌上每个位置旁都有彩包爆竹。3. 解密高手：Computer crackers will push the outer limits of network security. 计算机解密高手通常能够破除网络外部的安全限制。