英语词汇been up to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	been up to
释义	Examples: be up to mischief— 使坏 See also: up to — 到 adv • 以至 • 以致 • 以至于 be v — 有 v • 是 v • 当 v • 成为 v • 做 v • 存在 v • 属 v • 乃 v • 乃是 v up — 向上 • 攲 up n — 起伏 n up to prep — 及 prep
随便看	are approximately the same are approximate only area precision area premium are a prerequisite are a prerequisite for area preservation area President area pressure are a preventive measure area price are a primary concern are a priority are a problem area projected are a promising development area prone area quality assurance are aquired area radius area range area rather than area ratio are arbitraged are arched

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。

be up to mischief—