習的定義

名詞:
1.姓
2.不易改變的個性或行為積習
動詞:
1.反覆地學溫習

1.to practice;to review
2.to become used to
3.to be used to
4.a custom of habit

習means revision.
Revise means to remember something in your heart after reading a book.
You can read the book more than one time, just use the best way to remember something.