diff --git a/pages/总复习2023t1.md b/pages/总复习2023t1.md
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@@ -1950,6 +1950,7 @@
 							- A lack of _skills_
 				- ## Topic 10: ==Intellectual Property==
 				  deck:: 2023t1/product/w2/t10
+				  collapsed:: true
 					- 知识产权分类 #flashcard
 					  id:: 648ae540-d111-47d6-8742-5709ab330e29
 						- 专利 (patent):专利是政府向发明人授予的暂时垄断权，以排除他人使用该发明。在美国，专利有效期自其存档日期起共20年。“ 专利是个人或组织与国家之间的契约”专利是由政府授予的有限时间的垄断，作为交换，它向公众传授新的有用的知识 其目的是通过授予临时垄断来鼓励一个经济体内部的创造力和创新·a document granting an inventor sole rights to an invention ¡ ·“a patent is a contract between an individual or organisation and the state¡· A patent is a limited-time monopoly, granted by government, in exchange for teaching the public new and useful knowledge ¡ ·The aim is to encourage creativity and innovation within an economy by granting a temporary monopolyThis means that individuals and organisations will know that any l· idea that is created from their R&D investment will be protected (if patentable), and l ·any Return On Investment (ROI) will be received by them and not others（也就是说个人和组织将知道他们所研发的想法将得到保护，同时任何投资回报（ROI）将由他们获得，而不是别人）