请推荐一个开源项目，其中包含良好英语的优质评论

English is not my mother tongue. However, I have to write comments in English. I want to improve my "comment English" by studying a piece of code which is commented in a good English. Please recommend an open source project which contains a lot of meaningful comments written by people with an excellent command of the language.English is not my mother tongue. However, I hav