考研的缺点可以用英语表达为 shortcoming、 defect或 weakness。这些词都可以用来描述在考研过程中可能遇到的各种不足或问题。例如：
1. She has a few shortcomings in her study habits that she needs to work on.（她在学习习惯上有几个缺点需要改进。）
2. The defect in the software caused a lot of inconvenience for users.（软件中的缺陷给用户带来了很多不便。）
3. It's important to recognize one's weaknesses and work on them.（认识到自己的弱点并努力改进是很重要的。）