diff --git a/assets/section_3.4_1686989774901_0.edn b/assets/section_3.4_1686989774901_0.edn
index 2ed9588..299dd78 100644
--- a/assets/section_3.4_1686989774901_0.edn
+++ b/assets/section_3.4_1686989774901_0.edn
@@ -21,5 +21,17 @@
                           :rects (),
                           :page 8},
                :content {:text "[:span]", :image 1686990178559},
+               :properties {:color "yellow"}}
+              {:id #uuid "648d6e44-810c-4e82-aa1e-f13a590143e3",
+               :page 9,
+               :position {:bounding {:x1 41,
+                                     :y1 74.5830078125,
+                                     :x2 688,
+                                     :y2 197.5830078125,
+                                     :width 725.67,
+                                     :height 544.252},
+                          :rects (),
+                          :page 9},
+               :content {:text "[:span]", :image 1686990403880},
                :properties {:color "yellow"}}],
- :extra {:page 9}}
+ :extra {:page 11}}
diff --git a/assets/section_3.4_1686989774901_0/9_648d6e44-810c-4e82-aa1e-f13a590143e3_1686990403880.png b/assets/section_3.4_1686989774901_0/9_648d6e44-810c-4e82-aa1e-f13a590143e3_1686990403880.png
new file mode 100644
index 0000000..3413edd
Binary files /dev/null and b/assets/section_3.4_1686989774901_0/9_648d6e44-810c-4e82-aa1e-f13a590143e3_1686990403880.png differ
diff --git a/pages/hls__section_3.4_1686989774901_0.md b/pages/hls__section_3.4_1686989774901_0.md
index c3cec4b..c0411ae 100644
--- a/pages/hls__section_3.4_1686989774901_0.md
+++ b/pages/hls__section_3.4_1686989774901_0.md
@@ -14,4 +14,11 @@ file-path:: ../assets/section_3.4_1686989774901_0.pdf
   hl-color:: yellow
   id:: 648d6d63-dc15-4e2d-884c-3a8c59f092e8
   hl-type:: area
-  hl-stamp:: 1686990178559
\ No newline at end of file
+  hl-stamp:: 1686990178559
+- [:span]
+  ls-type:: annotation
+  hl-page:: 9
+  hl-color:: yellow
+  id:: 648d6e44-810c-4e82-aa1e-f13a590143e3
+  hl-type:: area
+  hl-stamp:: 1686990403880
\ No newline at end of file
diff --git a/pages/总复习2023t1.md b/pages/总复习2023t1.md
index 32deb40..185b44d 100644
--- a/pages/总复习2023t1.md
+++ b/pages/总复习2023t1.md
@@ -2939,7 +2939,8 @@
 						- Discrete case
 							- Definition:
 								- ((648d6d63-dc15-4e2d-884c-3a8c59f092e8))
-							-
+							- Poisson distribution and Bernoulli distribution
+								-
 			- LATER 学积分
 			  :LOGBOOK:
 			  CLOCK: [2023-06-03 Sat 17:05:07]--[2023-06-03 Sat 17:05:08] =>  00:00:01