go away with
1．leave with；elope同…一道离开；私奔
I saw her going away with her mother for a holiday．我见到她和她母亲一道外出度假。
He went away with his friend's wife．他和他朋友的妻子一起私奔了。
2．take without permission 未经允许带走；偷走
She's gone away with my clock．她偷走了我的钟。
3．believe 相信
Don't go away with the idea that you won't have to pay for it．别以为你不用付款。