diff --git a/zh-cn/application-dev/reference/apis/js-apis-inner-application-abilityDelegator.md b/zh-cn/application-dev/reference/apis/js-apis-inner-application-abilityDelegator.md
index 8c0b11cd56f2ae800cb27ffcc2803442b864205b..0643bf833845f7804041327d10f3bbcfe892daae 100644
--- a/zh-cn/application-dev/reference/apis/js-apis-inner-application-abilityDelegator.md
+++ b/zh-cn/application-dev/reference/apis/js-apis-inner-application-abilityDelegator.md
@@ -502,8 +502,8 @@ abilityDelegator = AbilityDelegatorRegistry.getAbilityDelegator();
 abilityDelegator.getCurrentTopAbility((err : any, data : any) => {
     console.info('getCurrentTopAbility callback');
     ability = data;
-    abilityDelegator.doAbilityForeground(ability, (err : any, data : any) => {
-        console.info('doAbilityForeground callback');
+    abilityDelegator.doAbilityForeground(ability, (err : any) => {
+        console.info("doAbilityForeground callback");
     });
 });
 ```
@@ -540,8 +540,8 @@ abilityDelegator = AbilityDelegatorRegistry.getAbilityDelegator();
 abilityDelegator.getCurrentTopAbility((err : any, data : any) => {
     console.info('getCurrentTopAbility callback');
     ability = data;
-    abilityDelegator.doAbilityForeground(ability).then((data : any) => {
-        console.info('doAbilityForeground promise');
+    abilityDelegator.doAbilityForeground(ability).then(() => {
+        console.info("doAbilityForeground promise");
     });
 });
 ```
@@ -573,8 +573,8 @@ abilityDelegator = AbilityDelegatorRegistry.getAbilityDelegator();
 abilityDelegator.getCurrentTopAbility((err : any, data : any) => {
     console.info('getCurrentTopAbility callback');
     ability = data;
-    abilityDelegator.doAbilityBackground(ability, (err : any, data : any) => {
-        console.info('doAbilityBackground callback');
+    abilityDelegator.doAbilityBackground(ability, (err : any) => {
+        console.info("doAbilityBackground callback");
     });
 });
 ```
@@ -611,8 +611,8 @@ abilityDelegator = AbilityDelegatorRegistry.getAbilityDelegator();
 abilityDelegator.getCurrentTopAbility((err : any, data : any) => {
     console.info('getCurrentTopAbility callback');
     ability = data;
-    abilityDelegator.doAbilityBackground(ability).then((data : any) => {
-        console.info('doAbilityBackground promise');
+    abilityDelegator.doAbilityBackground(ability).then(() => {
+        console.info("doAbilityBackground promise");
     });
 });
 ```
diff --git a/zh-cn/application-dev/reference/errorcodes/errorcode-CommonEventService.md b/zh-cn/application-dev/reference/errorcodes/errorcode-CommonEventService.md
index 9c5fe5a338ad282b66cced8a4ebe3ef477580545..cc41fe2d5b5b3a13332d9a4b6c7e71a1b872d988 100644
--- a/zh-cn/application-dev/reference/errorcodes/errorcode-CommonEventService.md
+++ b/zh-cn/application-dev/reference/errorcodes/errorcode-CommonEventService.md
@@ -3,7 +3,7 @@
 ## 1500001 want中Action为空
 
 **错误信息**
-Want action is null
+> The action field in the want parameter is null.
 
 **错误描述**
 发送事件的want中的Action属性为空时系统会产生此错误码。
@@ -17,7 +17,7 @@ Want action is null
 ##  1500002 沙箱引用无法发送公共事件
 
 **错误信息**
-sandbox application can not send common event
+> A sandbox application cannot send common events.
 
 **错误描述**
 沙箱引用无法发送公共事件。
@@ -31,7 +31,7 @@ sandbox application can not send common event
 ##  1500003 事件发送频率过高
 
 **错误信息**
-common event send frequency too high
+> Too many common events are send in a short period of time.
 
 **错误描述**
 应用发送事件过于频繁。
@@ -45,7 +45,7 @@ common event send frequency too high
 ##  1500004 无法发送系统公共事件
 
 **错误信息**
-not System services or System app
+> A third-party application cannot send system common events.
 
 **错误描述**
 当前应用无法发送系统公共事件。
@@ -59,7 +59,7 @@ not System services or System app
 ##  1500005 未找到订阅者
 
 **错误信息**
-subscriber can not found
+> The subscriber is not found.
 
 **错误描述**
 找不到订阅者。
@@ -73,7 +73,7 @@ subscriber can not found
 ##  1500006 无效userId
 
 **错误信息**
-usreId is invalid
+> Invalid userId.
 
 **错误描述**
 无效的userId。
@@ -87,7 +87,7 @@ usreId is invalid
 ##  1500007 IPC请求发送失败
 
 **错误信息**
-message send error
+> Failed to send the message.
 
 **错误描述**
 IPC发送请求失败。
@@ -101,7 +101,7 @@ IPC发送请求失败。
 ##  1500008 读取数据失败
 
 **错误信息**
-CEMS error
+> Failed to read the data.
 
 **错误描述**
 服务端发生错误。
@@ -112,10 +112,10 @@ CEMS error
 **处理步骤**
 稍后重新尝试。
 
-##  1500009 system error
+##  1500009 系统错误
 
 **错误信息**
-system error
+> System error.
 
 **错误描述**
 处理业务时系统发生异常，如获取系统当前时间失败。