英文翻译一句话谢谢。。。你不需要给我一个非常精确的数字，大概的一个数字就可以了。

you needn't give me the very precise figure,a rough figure will be ok!

there's no need for you to give me an accurate figure/number(最好加上连接词 and ）an approximate one will do.

You don't have to give me an accurate figure but just a ballpark figure.

ballpark figure = rough figure 粗略的数值
是商务场合中常用的习语，来源于棒球运动项目（任何击球只要不出场地的边界，都是允许的）

don't have to = don't need to 不需要...

You don't need to give me a very precise figures, probably a number can be.

You do not need to give me a very precise figure. Just a number on it is ok.