diff --git a/assets/section_2.5_1686968005870_0.edn b/assets/section_2.5_1686968005870_0.edn
index 5372417..5da8122 100644
--- a/assets/section_2.5_1686968005870_0.edn
+++ b/assets/section_2.5_1686968005870_0.edn
@@ -153,5 +153,17 @@
                           :rects (),
                           :page 35},
                :content {:text "[:span]", :image 1686972889585},
+               :properties {:color "yellow"}}
+              {:id #uuid "648d2c35-041a-4575-b39d-c42c1a6f532f",
+               :page 37,
+               :position {:bounding {:x1 33,
+                                     :y1 62.75,
+                                     :x2 656,
+                                     :y2 483.75,
+                                     :width 677.2919999999999,
+                                     :height 507.96853333333326},
+                          :rects (),
+                          :page 37},
+               :content {:text "[:span]", :image 1686973492094},
                :properties {:color "yellow"}}],
- :extra {:page 37}}
+ :extra {:page 38}}
diff --git a/assets/section_2.5_1686968005870_0/37_648d2c35-041a-4575-b39d-c42c1a6f532f_1686973492094.png b/assets/section_2.5_1686968005870_0/37_648d2c35-041a-4575-b39d-c42c1a6f532f_1686973492094.png
new file mode 100644
index 0000000..699fc7d
Binary files /dev/null and b/assets/section_2.5_1686968005870_0/37_648d2c35-041a-4575-b39d-c42c1a6f532f_1686973492094.png differ
diff --git a/pages/hls__section_2.5_1686968005870_0.md b/pages/hls__section_2.5_1686968005870_0.md
index 0efdf0e..5ec258f 100644
--- a/pages/hls__section_2.5_1686968005870_0.md
+++ b/pages/hls__section_2.5_1686968005870_0.md
@@ -91,4 +91,11 @@ file-path:: ../assets/section_2.5_1686968005870_0.pdf
   hl-color:: yellow
   id:: 648d29da-0535-4dd3-ae79-48b34e047339
   hl-type:: area
-  hl-stamp:: 1686972889585
\ No newline at end of file
+  hl-stamp:: 1686972889585
+- [:span]
+  ls-type:: annotation
+  hl-page:: 37
+  hl-color:: yellow
+  id:: 648d2c35-041a-4575-b39d-c42c1a6f532f
+  hl-type:: area
+  hl-stamp:: 1686973492094
\ No newline at end of file
diff --git a/pages/总复习2023t1.md b/pages/总复习2023t1.md
index 7f00826..99aea08 100644
--- a/pages/总复习2023t1.md
+++ b/pages/总复习2023t1.md
@@ -2827,7 +2827,10 @@
 								- ((648d294d-7bb2-4b6e-8aca-70dc4af6005c))
 								- Standard normal distribution :-> ((648d2960-d588-4610-a643-e292ef5b793f))
 								- Calculating distribution between certain intervals :-> ((648d29b2-c64e-4480-b633-169fe5f0b6cd))
+								  id:: 648d29b8-bd11-4eb6-9240-941c2ff636f1
 								- Calculating negative ones :-> ((648d29da-0535-4dd3-ae79-48b34e047339))
+								- Example using ((648d29b8-bd11-4eb6-9240-941c2ff636f1))
+									- ((648d2c35-041a-4575-b39d-c42c1a6f532f))
 								-
 				-
 				-