Initialization. A very common bug is to initialize a variable. Go through a loop, and then forget to reinitialize it when it needs to be reinitialized again.

忘记初始化,忘记初始化变量是一个很常见的错误,运行完一个循环之后,当需要再次初始化时。

麻省理工公开课 - 计算机科学及编程导论课程节选

What are common mistakes Korean students make when speaking English?

韩国学生讲英语的时候，有哪些常见错误？

韩国人经常犯的失误 - SpeakingMax英语口语达人