crack·er/`krækə; ˈkrækə/ n 1 [C] a thin BISCUIT often eaten with cheese 〔常与奶酪一起吃的〕薄脆饼干 2 [C] a brightly coloured paper tube containing a small present, which people pull open at Christmas 〔常在圣诞节时打开的〕彩包爆竹 3 [singular 单数] BrE informal something that is very good 【英,非正式】 好的事物: Thompson's goal was a real cracker! 汤普森的进球真精彩!