2. A stubborn child, passing by the library door every day, always sees the library cleaner studying hard and is deeply moved. . . . . And get angry. . .
3, reverse order technique, a person who set foot on a job, this does not understand, that does not understand, this does not, that does not, the knowledge is narrow, the coverage is small, and it is useless to think that so many useful books during his college years. . . .