diff --git a/assets/section_2.3_1686916498071_0.edn b/assets/section_2.3_1686916498071_0.edn
index fa81984..873e4bb 100644
--- a/assets/section_2.3_1686916498071_0.edn
+++ b/assets/section_2.3_1686916498071_0.edn
@@ -242,4 +242,4 @@
                           :page 44},
                :content {:text "[:span]", :image 1686920437098},
                :properties {:color "yellow"}}],
- :extra {:page 45}}
+ :extra {:page 46}}
diff --git a/pages/总复习2023t1.md b/pages/总复习2023t1.md
index d67c01e..e914063 100644
--- a/pages/总复习2023t1.md
+++ b/pages/总复习2023t1.md
@@ -2753,9 +2753,9 @@
 						- LATER Moments of random variable
 							- Definition :-> ((648c5c3a-160a-41ff-9cc7-83e750e3e8fa))
 						- Application of Expectation and Variation
-							- Markov's inequality #flashcard
+							- Markov's inequality: when only Expectation is known #flashcard
 								- ((648c5c6f-d6b4-4c65-b9a4-9f51f93f86ad))
-							- Chebyshev's inequality #flashcard
+							- Chebyshev's inequality: when only variance is known #flashcard
 								- ((648c5c81-d93b-4859-9ee0-37cceb8fd100))
 							- Usage of Markov's inequality and Chebyshev's inequality
 								- ((648c5cf5-239a-4d47-a57a-d65c53c215c4))