diff --git a/rime_mint.schema.yaml b/rime_mint.schema.yaml
index 0da0a5c..f0fe617 100755
--- a/rime_mint.schema.yaml
+++ b/rime_mint.schema.yaml
@@ -188,6 +188,8 @@ speller:
     - derive/([aeiou])ng$/$1gn/        # dagn => dang
     - derive/([dtngkhrzcs])o(u|ng)$/$1o/  # zho => zhong|zhou
     - derive/ong$/on/                  # zhonguo => zhong guo
+    - abbrev/^([a-z])[a-z]*$/$1/       # 简拼（首字母）
+    - abbrev/^([zcs]h).+$/$1/          # 简拼（zh, ch, sh）
      ### 自动纠错
     # 有些规则对全拼简拼混输有副作用：如「x'ai 喜爱」被纠错为「xia 下」
     # zh、ch、sh