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• Only when you know the old knowledge can you learn the new knowledge.
• Now, we not only study the new text, but also go over the old knowledge.
• We can derive from practice everyday, firstly, we can't forget the old knowledge .

new knowledge	388.66	I had had some new knowledges .
advanced knowledge	155.46	They can offer the most advanced knowledge for students to learn.
real knowledge	155.46	But our society needs those who have real knowledge and capability.
basic knowledge	77.73	The basic knowledge of Chinese that I know is too limited.
english knowledge	77.73	However, some students who notice the despoist of English knowledge can obtain high scores on tests.
different knowledge	64.78	Because they like the new condition, and they want to learn different knowledge.
general knowledge	64.78	At 9:30 you will have a general knowledge test in the library.
major knowledge	64.78	To the major knowledge, we can listen to the teacher in the class and study it in our spare-time .
old knowledge	64.78	Only when you know the old knowledge can you learn the new knowledge.
practical knowledge	64.78	Most of them are the cream of human's practical knowledge over millions' years.