Commentary in the form of keywords ------ To enable quick review when reviewing The commentary is sweet as concisely as possible. ----- [Chinese character display] For learning effect Chinese characters are used in a larger notation.
[Check Note] ----- After registering only wrong or confusing problems in Checknote You can see it later. ------ [Word book] ------ A vocabulary function has been added so that you can memorize it repeatedly. Test randomly You can test only what you choose.
Updated on
Aug 31, 2025
Education
Data safety
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Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
This app may share these data types with third parties
Location, App activity, and Device or other IDs
No data collected
Learn more about how developers declare collection