相关单词同义词in advance, previously, ahead, ready, pre, arranged, 近义词 already 已经, in advance 提前, earlier 早的, before 在 ... 以前, early 早, ahead of time 提前, previously 先前, ahead 领先, advance 前进反义词afterward临近词befriend, before, Beforehand plan, beforehand with, beforehand case, Beforehand alarm, beforehand stress, beforehand analysis, beforehand drainage, beforehand narrative, Beforehand probation, beforehand expectancy相似词before the Flood idiom, before you can say Jack Robinson idiom, before you know it idiom, before your very eyes idiom, befriend, befuddle, befuddled, beg, 返回 beforehand