diff --git a/README.md b/README.md
index 55fb970..7f4371e 100644
--- a/README.md
+++ b/README.md
@@ -17,7 +17,7 @@ Documents: http://cpgames.readthedocs.io/
 
 # Games
 ```
-Create interesting games by pure python.
+Create interesting games in pure python.
 You can star this repository to keep track of the project if it's helpful for you, thank you for your support.
 ```
 
@@ -102,14 +102,14 @@ game_client.execute(random.choice(list(all_supports.values())))
 
 
 # Projects in Charles_pikachu
-- [Games](https://github.com/CharlesPikachu/Games): Create interesting games by pure python.
+- [Games](https://github.com/CharlesPikachu/Games): Create interesting games in pure python.
 - [DecryptLogin](https://github.com/CharlesPikachu/DecryptLogin): APIs for loginning some websites by using requests.
-- [Musicdl](https://github.com/CharlesPikachu/musicdl): A lightweight music downloader written by pure python.
-- [Videodl](https://github.com/CharlesPikachu/videodl): A lightweight video downloader written by pure python.
-- [Pytools](https://github.com/CharlesPikachu/pytools): Some useful tools written by pure python.
+- [Musicdl](https://github.com/CharlesPikachu/musicdl): A lightweight music downloader written in pure python.
+- [Videodl](https://github.com/CharlesPikachu/videodl): A lightweight video downloader written in pure python.
+- [Pytools](https://github.com/CharlesPikachu/pytools): Some useful tools written in pure python.
 - [PikachuWeChat](https://github.com/CharlesPikachu/pikachuwechat): Play WeChat with itchat-uos.
 - [Pydrawing](https://github.com/CharlesPikachu/pydrawing): Beautify your image or video.
-- [ImageCompressor](https://github.com/CharlesPikachu/imagecompressor): Image compressors written by pure python.
+- [ImageCompressor](https://github.com/CharlesPikachu/imagecompressor): Image compressors written in pure python.
 - [FreeProxy](https://github.com/CharlesPikachu/freeproxy): Collecting free proxies from internet.
 - [Paperdl](https://github.com/CharlesPikachu/paperdl): Search and download paper from specific websites.
 - [Sciogovterminal](https://github.com/CharlesPikachu/sciogovterminal): Browse "The State Council Information Office of the People's Republic of China" in the terminal.
@@ -126,7 +126,7 @@ If you use this project in your research, please cite this project.
 ```
 @misc{games2020,
     author = {Zhenchao Jin},
-    title = {Games: Create interesting games by pure python},
+    title = {Games: Create interesting games in pure python},
     year = {2020},
     publisher = {GitHub},
     journal = {GitHub repository},
diff --git a/cpgames/__init__.py b/cpgames/__init__.py
index a598e50..0ddbc31 100644
--- a/cpgames/__init__.py
+++ b/cpgames/__init__.py
@@ -1,7 +1,7 @@
 '''title'''
 __title__ = 'cpgames'
 '''description'''
-__description__ = 'Games: Create interesting games by pure python'
+__description__ = 'Games: Create interesting games in pure python'
 '''url'''
 __url__ = 'https://github.com/CharlesPikachu/Games'
 '''version'''