练习材料：

Lesson 15-2 Secrecy in industry 工业中的秘密

 Yet a great many processes depending on such research are sought for with complete secrecy until the stage at which patents can be taken out. Even more processes are never patented at all but kept as secret processes. This applies particularly to chemical industries, where chance discoveries play a much larger part than they do in physical and mechanical industries. Sometimes the secrecy goes to such an extent that the whole nature of the research cannot be mentioned. Many firms, for instance, have great difficulty in obtaining technical or scientific books from libraries because they areunwillingto have their names entered as having taken out such and such a book, for fear the agents of other firms should be able to trace the kind of research they are likely to be undertaking.

应用配置：L0+L4

知识笔记： secrecy/sikrəsi    patented/pætəntəd    unwilling/ənˈwɪlɪŋ

练习感悟：用时1小时3分。状态不佳，静不下来，效果也自然不好。