Translation of "or so" into Chinese

You can buy it for a thousand yen or so.

你能以大约1000日元买下它。

There is a lot of tension in the last five years or so.

過去 大約 五年 間 一直 局勢 緊張

However hard you may study, you can't master English in a year or so.

無論你多麼努力,也不可能只花一年左右就精通英文。