但客户一直是使用10.7的系统,购买的时候也没有问题的翻译：But customers have been using 10.7 system, purchase when there are no problems 什么意思？中文翻译英文，英文翻译中文，怎么说？

青云英语翻译

Customers have a 10.7 system, purchased when there is no problem

But customers have been using 10.7 system, purchase when there are no problems

Also but the customer always is uses 10.7 systems, purchase time does not have the question

But the customer has been using the 10.7 system, the time of purchase is not a problem

But customers have been using 10.7 system, purchase when there are no problems