atprep.在；向；达n.基普(老挝货币基本单位)(=att)；[化]砹(极不稳定放射性元素)abbr.密封的(=airtight)abbr.气温(=air temperature)Athala阿特拉

1. He went abroad at his own expense.
   他自费出国。
2. I studied at a college to improve English at my own expense.
   我自费到一个学院去进修英语。