Today, when a student begins to study a discipline, such as chemistry, it may appear to him that the subject is completely “worked out,” that all the answers have been found, and that there is nothing new to discover. 译文：_____________

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Today, when a student begins to study a discipline, such as chemistry, it may appear to him that the subject is completely “worked out,” that all the answers have been found, and that there is nothing new to discover. 译文：______________