diff --git a/pages/总复习2023t1.md b/pages/总复习2023t1.md
index 57c488c..c013650 100644
--- a/pages/总复习2023t1.md
+++ b/pages/总复习2023t1.md
@@ -2250,11 +2250,11 @@
 						  Make models with a defined purpose
 						- Consider multiple forms of prototypes
 						- Choose the timing of prototype cycles
-						  l Many early models are used to validate concepts
-						  l Relatively few comprehensive models are
-						  necessary to test integration
-						  ¡ Plan time to learn from prototype cycles
-						  l Avoid the “hardware swamp” - where you keep
+							- Many early models are used to validate concepts
+							- Relatively few comprehensive models are
+							  necessary to test integration
+						- Plan time to learn from prototype cycles
+						- Avoid the “hardware swamp” - where you keep
 						  building different ways out of a problem without
 						  stopping to think
 			- DONE Week4