diff --git a/en-US/dita/RTC-NG/API/api_irtcengine_disableaudio.dita b/en-US/dita/RTC-NG/API/api_irtcengine_disableaudio.dita
index 17dc454c356..2afaf09be65 100644
--- a/en-US/dita/RTC-NG/API/api_irtcengine_disableaudio.dita
+++ b/en-US/dita/RTC-NG/API/api_irtcengine_disableaudio.dita
@@ -16,7 +16,7 @@
             <codeblock props="android" outputclass="language-java">public abstract int disableAudio();</codeblock>
             <codeblock props="ios mac" outputclass="language-objectivec">- (int)disableAudio;</codeblock>
             <codeblock props="cpp unreal" outputclass="language-cpp">virtual int disableAudio() = 0;</codeblock>
-         <codeblock props="bp" outputclass="language-cpp">UFUNCTION(BlueprintCallable, Category = &quot;Agora|RtcEngineProxy&quot;)
+            <codeblock props="bp" outputclass="language-cpp">UFUNCTION(BlueprintCallable, Category = &quot;Agora|RtcEngineProxy&quot;)
 	int DisableAudio();</codeblock>
             <codeblock props="electron" outputclass="language-typescript">abstract disableAudio(): number;</codeblock>
             <codeblock props="unity cs" outputclass="language-csharp">public abstract int DisableAudio();</codeblock>
diff --git a/en-US/dita/RTC-NG/API/api_irtcengine_enableaudio.dita b/en-US/dita/RTC-NG/API/api_irtcengine_enableaudio.dita
index 5ebe967f624..c3233b6e44d 100644
--- a/en-US/dita/RTC-NG/API/api_irtcengine_enableaudio.dita
+++ b/en-US/dita/RTC-NG/API/api_irtcengine_enableaudio.dita
@@ -16,7 +16,7 @@
             <codeblock props="android" outputclass="language-java">public abstract int enableAudio();</codeblock>
             <codeblock props="ios mac" outputclass="language-objectivec">- (int)enableAudio;</codeblock>
             <codeblock props="cpp unreal" outputclass="language-cpp">virtual int enableAudio() = 0;</codeblock>
-         <codeblock props="bp" outputclass="language-cpp">UFUNCTION(BlueprintCallable, Category = &quot;Agora|RtcEngineProxy&quot;)
+            <codeblock props="bp" outputclass="language-cpp">UFUNCTION(BlueprintCallable, Category = &quot;Agora|RtcEngineProxy&quot;)
 	int EnableAudio();</codeblock>
             <codeblock props="electron" outputclass="language-typescript">abstract enableAudio(): number;</codeblock>
             <codeblock props="unity cs" outputclass="language-csharp">public abstract int EnableAudio();</codeblock>
diff --git a/en-US/dita/RTC-NG/API/api_irtcengine_enablelocalaudio.dita b/en-US/dita/RTC-NG/API/api_irtcengine_enablelocalaudio.dita
index 2554355d28d..fb415885ce2 100644
--- a/en-US/dita/RTC-NG/API/api_irtcengine_enablelocalaudio.dita
+++ b/en-US/dita/RTC-NG/API/api_irtcengine_enablelocalaudio.dita
@@ -16,7 +16,7 @@
             <codeblock props="android" outputclass="language-java">public abstract int enableLocalAudio(boolean enabled);</codeblock>
             <codeblock props="ios mac" outputclass="language-objectivec">- (int)enableLocalAudio:(BOOL)enabled;</codeblock>
             <codeblock props="cpp unreal" outputclass="language-cpp">virtual int enableLocalAudio(bool enabled) = 0;</codeblock>
-         <codeblock props="bp" outputclass="language-cpp">UFUNCTION(BlueprintCallable, Category = &quot;Agora|RtcEngineProxy&quot;)
+            <codeblock props="bp" outputclass="language-cpp">UFUNCTION(BlueprintCallable, Category = &quot;Agora|RtcEngineProxy&quot;)
 	int EnableLocalAudio(bool enabled);</codeblock>
             <codeblock props="electron" outputclass="language-typescript">abstract enableLocalAudio(enabled: boolean): number;</codeblock>
             <codeblock props="unity cs" outputclass="language-csharp">public abstract int EnableLocalAudio(bool enabled);</codeblock>
diff --git a/en-US/dita/RTC-NG/API/api_irtcengine_setaudioprofile.dita b/en-US/dita/RTC-NG/API/api_irtcengine_setaudioprofile.dita
index 40338a85cdd..58a6fc9ec1d 100644
--- a/en-US/dita/RTC-NG/API/api_irtcengine_setaudioprofile.dita
+++ b/en-US/dita/RTC-NG/API/api_irtcengine_setaudioprofile.dita
@@ -16,7 +16,7 @@
             <codeblock props="android" outputclass="language-java">public abstract int setAudioProfile(int profile, int scenario);</codeblock>
             <codeblock props="ios mac" outputclass="language-objectivec">- (int)setAudioProfile:(AgoraAudioProfile)profile scenario:(AgoraAudioScenario)scenario;</codeblock>
             <codeblock props="cpp unreal" outputclass="language-cpp">virtual int setAudioProfile(AUDIO_PROFILE_TYPE profile, AUDIO_SCENARIO_TYPE scenario) = 0;</codeblock>
-         <codeblock props="bp" outputclass="language-cpp">UFUNCTION(BlueprintCallable, Category = &quot;Agora|RtcEngineProxy&quot;)
+            <codeblock props="bp" outputclass="language-cpp">UFUNCTION(BlueprintCallable, Category = &quot;Agora|RtcEngineProxy&quot;)
 	int SetAudioProfile(EAUDIO_PROFILE_TYPE profile = EAUDIO_PROFILE_TYPE::AUDIO_PROFILE_DEFAULT, EAUDIO_SCENARIO_TYPE scenario = EAUDIO_SCENARIO_TYPE::AUDIO_SCENARIO_DEFAULT);</codeblock>
             <codeblock props="electron" outputclass="language-typescript">abstract setAudioProfile(
     profile: AudioProfileType,
diff --git a/en-US/dita/RTC-NG/API/api_irtcengine_setaudioscenario.dita b/en-US/dita/RTC-NG/API/api_irtcengine_setaudioscenario.dita
index e8cb0892f97..794a22e0b99 100644
--- a/en-US/dita/RTC-NG/API/api_irtcengine_setaudioscenario.dita
+++ b/en-US/dita/RTC-NG/API/api_irtcengine_setaudioscenario.dita
@@ -16,7 +16,7 @@
             <codeblock props="android" outputclass="language-java">public abstract int setAudioScenario(int scenario);</codeblock>
             <codeblock props="ios mac" outputclass="language-objectivec">- (int)setAudioScenario:(AgoraAudioScenario)scenario;</codeblock>
             <codeblock props="cpp unreal" outputclass="language-cpp">virtual int setAudioScenario(AUDIO_SCENARIO_TYPE scenario) = 0;</codeblock>
-         <codeblock props="bp" outputclass="language-cpp">UFUNCTION(BlueprintCallable, Category = &quot;Agora|RtcEngineProxy&quot;)
+            <codeblock props="bp" outputclass="language-cpp">UFUNCTION(BlueprintCallable, Category = &quot;Agora|RtcEngineProxy&quot;)
 	int SetAudioScenario(EAUDIO_SCENARIO_TYPE scenario = EAUDIO_SCENARIO_TYPE::AUDIO_SCENARIO_DEFAULT);</codeblock>
             <codeblock props="electron" outputclass="language-typescript">abstract setAudioScenario(scenario: AudioScenarioType): number;</codeblock>
             <codeblock props="unity cs" outputclass="language-csharp">public abstract int SetAudioScenario(AUDIO_SCENARIO_TYPE scenario);</codeblock>