e back:回来 I will be back soon.我一会就回来. be away:离开 I will be away on holiday for two weeks. 我会外出度假两星期. be off:有很多意思,具体要看整个句子了. Be off with you!走开（滚开）! She is off today.她今天休息（不上班）. 还有很多,不一一列举了. be out:在开,在外,不在 She is out at this moment.她现在不在. 其实这些词都要放在具体句子中去理解它们的意思.
