diff --git a/assets/section_2.3_1686916498071_0.edn b/assets/section_2.3_1686916498071_0.edn
index c516fd4..ea9561a 100644
--- a/assets/section_2.3_1686916498071_0.edn
+++ b/assets/section_2.3_1686916498071_0.edn
@@ -45,5 +45,29 @@
                           :rects (),
                           :page 20},
                :content {:text "[:span]", :image 1686918015117},
+               :properties {:color "yellow"}}
+              {:id #uuid "648c568e-c617-4699-b217-fd4e8ea205bc",
+               :page 25,
+               :position {:bounding {:x1 37,
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+                          :rects (),
+                          :page 25},
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+               :properties {:color "yellow"}}
+              {:id #uuid "648c569c-e3d0-445d-acf6-caf0e271f7be",
+               :page 26,
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+                          :rects (),
+                          :page 26},
+               :content {:text "[:span]", :image 1686918811763},
                :properties {:color "yellow"}}],
- :extra {:page 23}}
+ :extra {:page 26}}
diff --git a/assets/section_2.3_1686916498071_0/25_648c568e-c617-4699-b217-fd4e8ea205bc_1686918792533.png b/assets/section_2.3_1686916498071_0/25_648c568e-c617-4699-b217-fd4e8ea205bc_1686918792533.png
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diff --git a/assets/section_2.3_1686916498071_0/26_648c569c-e3d0-445d-acf6-caf0e271f7be_1686918811763.png b/assets/section_2.3_1686916498071_0/26_648c569c-e3d0-445d-acf6-caf0e271f7be_1686918811763.png
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diff --git a/pages/hls__section_2.3_1686916498071_0.md b/pages/hls__section_2.3_1686916498071_0.md
index ed4686f..2f5352a 100644
--- a/pages/hls__section_2.3_1686916498071_0.md
+++ b/pages/hls__section_2.3_1686916498071_0.md
@@ -28,4 +28,18 @@ file-path:: ../assets/section_2.3_1686916498071_0.pdf
   hl-color:: yellow
   id:: 648c5381-49cd-4701-ba48-31c0e21474a7
   hl-type:: area
-  hl-stamp:: 1686918015117
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+  hl-stamp:: 1686918015117
+- [:span]
+  ls-type:: annotation
+  hl-page:: 25
+  hl-color:: yellow
+  id:: 648c568e-c617-4699-b217-fd4e8ea205bc
+  hl-type:: area
+  hl-stamp:: 1686918792533
+- [:span]
+  ls-type:: annotation
+  hl-page:: 26
+  hl-color:: yellow
+  id:: 648c569c-e3d0-445d-acf6-caf0e271f7be
+  hl-type:: area
+  hl-stamp:: 1686918811763
\ No newline at end of file
diff --git a/pages/总复习2023t1.md b/pages/总复习2023t1.md
index 49c7267..99c7996 100644
--- a/pages/总复习2023t1.md
+++ b/pages/总复习2023t1.md
@@ -2727,8 +2727,11 @@
 								  collapsed:: true
 									- ((648c52d9-ea03-4835-8080-52ba5e6c3122))
 							- Expectation of compound **functions**: (Expectation of Functions of a Random Variable) (Replace $$x$$ with $$g(x)$$) #flashcard
+							  collapsed:: true
 								- ((648c5381-49cd-4701-ba48-31c0e21474a7))
-							-
+							- Properties:
+								- ((648c568e-c617-4699-b217-fd4e8ea205bc))
+								-
 			- LATER 学积分
 			  :LOGBOOK:
 			  CLOCK: [2023-06-03 Sat 17:05:07]--[2023-06-03 Sat 17:05:08] =>  00:00:01