diff --git a/01_introduction/1.2_what.md b/01_introduction/1.2_what.md
index 09bdeb6..3785057 100644
--- a/01_introduction/1.2_what.md
+++ b/01_introduction/1.2_what.md
@@ -24,7 +24,7 @@ flowchart LR
         direction TB
         C["Python 3.11<br/>Ubuntu 22.04<br/>不同版本的库"] --> D["运行失败！"]
     end
-    A -. "≠" .-> C
+    A -.->|不一致| C
 ```
 
 有了 Docker：
@@ -39,7 +39,7 @@ flowchart LR
         direction TB
         C["同一个镜像<br/>(完全一致)"] --> D["运行正常！"]
     end
-    A === "=" === C
+    A == 一致 ==> C
 ```
 
 ### 1.2.3 Docker vs 虚拟机