四六级写作中绝对用得到的关键词汇及短语一些a range of ; a variety of ; a series of ; an array of 无数innumerable ; countless 许多plenty of ; many ; much ; a great deal of ; a lot of ; ample 非常多(大)的tremendous 依序列举list in sequence 时间词 过时的outdated ; antiquated ; outmoded ; obsolete ; anachronistic 短暂的ephemeral ; transitory ; transient ; short-lived 不合时宜的anachronism 可持久的durable ; able to stand wear ; last a long time 一再time after time ; again and again