diff --git a/documentation/ext_characters_preliminary_2.md b/documentation/ext_characters_preliminary_2.md
index 570abbb..a95e657 100644
--- a/documentation/ext_characters_preliminary_2.md
+++ b/documentation/ext_characters_preliminary_2.md
@@ -69,3 +69,7 @@
 >☞ 参考输入法版本号：10.9b_20220810 build 423
 
 喥妉婋嫐巭惗昍暒朒氼湦焺玊玽珃珄琂琞砳羴翧膖芶莀莯蕥躝郬鍉靘麤
+
+### 6.3 其他偏旁部首
+
+㓁㣺乀乚乛尣彑旡歺爫罒耂镸𠂉𠘨𤴔𦥑𧾷