A performance review period is a time when your manager reviews your work and tells you where you need to improve or where you have been doing well. Some smaller companies do not have a concrete review process. But large companies have a process in place. Some of them do a review two times a year, and some companies have a yearly review. Your review is sometimes dependent on how much raise you will get and sometimes even the bonus amount. 

绩效考核阶段是你经理回顾你的工作一个时间，告诉你需要改进的地方，或者你在哪里做得很好。一些较小的公司没有具体的审查程序，但大公司有。有些公司每年做两次考核，有些公司每年都会进行一次考核，你的考核有时取决于你会得到多少加薪，有时甚至是奖金数额。

Because the review is different from company to company, I will use this English lesson for sentences you need to say during the time you speak with your manager. I will not be going into the details and timeframe of the review. 

因为各个公司的考核是不同的，所以我将用这节英语课介绍你和你的经理谈话的时候要用的句子，我将不会详细讨论审查的细节和时间框架。

If there is a process in place, then you probably have a template to write down your achievements over a certain time span. This is your chance to toot your own horn. So include everything you did and do not be modest. If you don't have a template to follow, then write down on a word document the achievements you made. It is also good to write down some places where you want to improve. Some people might think that telling your manager where you need to improve is basically admitting to having flaws, but great managers think a person who can identify their own problems and fix them are great employees. 

如果有一个过程，那么你可能有一个模板来记录你在某段时间内的成就，这是你自吹自擂的机会。所以，把你所做的一切都包括在内，不要谦虚，如果你没有模板可循，那就把你所取得的成就写在一个word文档里，把一些你想改善的地方写下来也很好。有些人可能会认为，告诉你的经理你需要改进的地方基本上是承认自己有缺点，但优秀的管理者认为一个能识别自己问题并解决问题的人是优秀的员工。