diff --git a/assets/section_2.4_1686920705980_0.edn b/assets/section_2.4_1686920705980_0.edn
index 8f404f4..0f458d6 100644
--- a/assets/section_2.4_1686920705980_0.edn
+++ b/assets/section_2.4_1686920705980_0.edn
@@ -103,5 +103,17 @@
                           :rects (),
                           :page 17},
                :content {:text "[:span]", :image 1686922168232},
+               :properties {:color "yellow"}}
+              {:id #uuid "648c63da-deea-42ab-8f72-f3219d4fecbc",
+               :page 18,
+               :position {:bounding {:x1 40,
+                                     :y1 191.166015625,
+                                     :x2 683,
+                                     :y2 450.166015625,
+                                     :width 725.67,
+                                     :height 544.252},
+                          :rects (),
+                          :page 18},
+               :content {:text "[:span]", :image 1686922202481},
                :properties {:color "yellow"}}],
  :extra {:page 18}}
diff --git a/assets/section_2.4_1686920705980_0/18_648c63da-deea-42ab-8f72-f3219d4fecbc_1686922202481.png b/assets/section_2.4_1686920705980_0/18_648c63da-deea-42ab-8f72-f3219d4fecbc_1686922202481.png
new file mode 100644
index 0000000..43e3dd2
Binary files /dev/null and b/assets/section_2.4_1686920705980_0/18_648c63da-deea-42ab-8f72-f3219d4fecbc_1686922202481.png differ
diff --git a/pages/hls__section_2.4_1686920705980_0.md b/pages/hls__section_2.4_1686920705980_0.md
index 765b1e9..e4012ef 100644
--- a/pages/hls__section_2.4_1686920705980_0.md
+++ b/pages/hls__section_2.4_1686920705980_0.md
@@ -52,4 +52,11 @@ file-path:: ../assets/section_2.4_1686920705980_0.pdf
   hl-color:: yellow
   id:: 648c63b8-21ff-42d4-ad87-70c706124ba1
   hl-type:: area
-  hl-stamp:: 1686922168232
\ No newline at end of file
+  hl-stamp:: 1686922168232
+- [:span]
+  ls-type:: annotation
+  hl-page:: 18
+  hl-color:: yellow
+  id:: 648c63da-deea-42ab-8f72-f3219d4fecbc
+  hl-type:: area
+  hl-stamp:: 1686922202481
\ No newline at end of file
diff --git a/pages/总复习2023t1.md b/pages/总复习2023t1.md
index cf26589..fac3ead 100644
--- a/pages/总复习2023t1.md
+++ b/pages/总复习2023t1.md
@@ -2788,7 +2788,8 @@
 							- Examples:
 								- ((648c62d4-454b-43ab-88a8-d35a5a867523))
 								- ((648c63b8-21ff-42d4-ad87-70c706124ba1))
-						-
+							- Poisson limit theorem #flashcard
+								- ((648c63da-deea-42ab-8f72-f3219d4fecbc))
 			- LATER 学积分
 			  :LOGBOOK:
 			  CLOCK: [2023-06-03 Sat 17:05:07]--[2023-06-03 Sat 17:05:08] =>  00:00:01