diff --git a/assets/section_2.2_1686916081846_0.edn b/assets/section_2.2_1686916081846_0.edn
new file mode 100644
index 0000000..74f08eb
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@@ -0,0 +1,18 @@
+{:highlights [{:id #uuid "648c4c04-61cb-4d8a-ae01-257a5edd0430",
+               :page 3,
+               :position {:bounding {:x1 17.005207061767578,
+                                     :y1 15.8267822265625,
+                                     :x2 504.5620918273926,
+                                     :y2 47.91015625,
+                                     :width 725.67,
+                                     :height 544.252},
+                          :rects ({:x1 17.005207061767578,
+                                   :y1 15.8267822265625,
+                                   :x2 504.5620918273926,
+                                   :y2 47.91015625,
+                                   :width 725.67,
+                                   :height 544.252}),
+                          :page 3},
+               :content {:text "The Definition of Distribution Function"},
+               :properties {:color "blue"}}],
+ :extra {:page 2}}
diff --git a/assets/section_2.2_1686916081846_0.pdf b/assets/section_2.2_1686916081846_0.pdf
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index 0000000..95cbcdf
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diff --git a/pages/hls__section_2.2_1686916081846_0.md b/pages/hls__section_2.2_1686916081846_0.md
new file mode 100644
index 0000000..ea609d5
--- /dev/null
+++ b/pages/hls__section_2.2_1686916081846_0.md
@@ -0,0 +1,2 @@
+file:: [section_2.2_1686916081846_0.pdf](../assets/section_2.2_1686916081846_0.pdf)
+file-path:: ../assets/section_2.2_1686916081846_0.pdf
diff --git a/pages/总复习2023t1.md b/pages/总复习2023t1.md
index 2acd11c..9ed6a5d 100644
--- a/pages/总复习2023t1.md
+++ b/pages/总复习2023t1.md
@@ -2712,6 +2712,7 @@
 							- ((648c488f-85fa-4203-8092-07176b38fce9))
 						- 公式法 #flashcard
 							- ((648c48ac-76be-4848-af0d-1532467c8d68))
+					- ((648c48ac-76be-4848-af0d-1532467c8d68))  ![section 2.2.pdf](../assets/section_2.2_1686916081846_0.pdf)
 					-
 			- LATER 学积分
 			  :LOGBOOK: