diff --git a/site/src/site/sphinx/en/jad.md b/site/src/site/sphinx/en/jad.md
index ef6a55ad5..a7c27cfcf 100644
--- a/site/src/site/sphinx/en/jad.md
+++ b/site/src/site/sphinx/en/jad.md
@@ -1,27 +1,24 @@
 jad
 ===
 
-De-compile specified loaded classes.
+> De-compile the specified classes.
 
-`jad` helps to *de-compile* the byte code in JVM to the source code to assist you to better understand the logic behind.
+`jad` helps to de-compile the byte code running in JVM to the source code to assist you to understand the logic behind better.
 
-F.Y.I
-* the de-compiled code will be grammatically highlighted for readability in Arthas console;
-* there might be some trivial grammar errors but it won't affect the logic understanding.
+* The de-compiled code is syntax highlighted for better readability in Arthas console.
+* It is possible that there's grammar error in the de-compiled code, but it should not affect your interpretation.
 
 ### Options
 
 |Name|Specification|
 |---:|:---|
 |*class-pattern*|pattern for the class name|
-|[c:]|hashcode of the class loader that loaded the class|
-|[E]|turn on regex matching while the default is wildcard matching|
+|`[c:]`|hashcode of the class loader that loads the class|
+|`[E]`|turn on regex match while the default is wildcard match|
 
 ### Usage
 
-When several class loaders loaded the same class:
-1. `jad` to get the hashcode of the class loader;
-2. `jad -c <hashcode>` to get the de-compiled class loaded by the specified class loader.
+> If the target class is loaded by multiple classloaders, `jad` outputs the `hashcode` of the corresponding classloaders, then you can re-run `jad` and specify `-c <hashcode>` to de-compile the target class from the specified classloader.
 
 ```java
 $ jad org.apache.log4j.Logger
@@ -156,7 +153,3 @@ private Map<String, Object> directMetrics(String ip, String[] metrics) {
 
 Affect(row-cnt:1) cost in 1508 ms.
 ```
-
-F.Y.I
-
-Inner class is not yet supported, you can just check the *outer* class to further check the inner class.