请把你要表达的中文说一下.我们尝试着，在长期过程中把普通用户尽可能多的维持在同一集合中We are trying to retain as many average users as possible to stay in the same set for the long run.1，时态用进行时更贴切；2，maintain不如retain更有留住之意；3，common user 是公共用户，有歧义。用average或ordinary更好。4，in the long run没有错误，但用for the long run更贴合表达之意。