diff --git a/assets/section_2.5_1686968005870_0.edn b/assets/section_2.5_1686968005870_0.edn
index d89c87b..83e2e54 100644
--- a/assets/section_2.5_1686968005870_0.edn
+++ b/assets/section_2.5_1686968005870_0.edn
@@ -1 +1,13 @@
-{:highlights [], :extra {:page 2}}
+{:highlights [{:id #uuid "648d1aea-71f3-473b-8e72-d1ee4e629a91",
+               :page 3,
+               :position {:bounding {:x1 38,
+                                     :y1 82.58331298828125,
+                                     :x2 635,
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+                          :rects (),
+                          :page 3},
+               :content {:text "[:span]", :image 1686969063738},
+               :properties {:color "yellow"}}],
+ :extra {:page 3}}
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diff --git a/pages/hls__section_2.5_1686968005870_0.md b/pages/hls__section_2.5_1686968005870_0.md
new file mode 100644
index 0000000..2e7b98b
--- /dev/null
+++ b/pages/hls__section_2.5_1686968005870_0.md
@@ -0,0 +1,2 @@
+file:: [section_2.5_1686968005870_0.pdf](../assets/section_2.5_1686968005870_0.pdf)
+file-path:: ../assets/section_2.5_1686968005870_0.pdf
diff --git a/pages/总复习2023t1.md b/pages/总复习2023t1.md
index dc347e0..d4bd13a 100644
--- a/pages/总复习2023t1.md
+++ b/pages/总复习2023t1.md
@@ -2818,6 +2818,7 @@
 								- DONE Examples
 					- Distribution of continuous random variables ![section 2.5.pdf](../assets/section_2.5_1686968005870_0.pdf)
 						- Uniform Distribution
+						-
 						- Exponential Distribution
 						- Normal Distribution
 			- LATER 学积分