英语词汇challenge before怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	challenge before
释义	challenge n — 挑战 n • 质疑 n • 难题 n challenge v — 挑战 v • 质疑 v • 怀疑 v before — 前 • 之前 • 在未 adv • 以前 • 先前 • 前来 • 先头 • 前儿 • 早先 challenge — 将军 before conj — 在之前 conj before prep — 先于 prep
随便看	at 19 March at 1 A.m. at 1 a.M. at1-antagonisten at 1 August at 1 August 2010 at 1 bar at 1 December at 1 December at 1 February at 1 January at 1 January 2011 at 1 km at 1% level at 1% level at 1 November at 1 oclock at 1 o'clock sharp at 1% of face value at 1% of face value at 1 percent at 1 p.m. at 1 P.m. at1 receptor at 1x

英汉双解词典包含2273206条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。

challenge n —