diff --git a/en-US/dita/RTC-NG/API/class_snapshotconfig.dita b/en-US/dita/RTC-NG/API/class_snapshotconfig.dita
index d8b633edc77..e48d3d35dbc 100644
--- a/en-US/dita/RTC-NG/API/class_snapshotconfig.dita
+++ b/en-US/dita/RTC-NG/API/class_snapshotconfig.dita
@@ -37,7 +37,7 @@
             </plentry>
             <plentry>
                 <pt>position</pt>
-                <pd>The observation position of the video frame to be captured in the video link. See <xref keyref="VIDEO_MODULE_POSITION"/>.</pd>
+                <pd>The position of the snapshot video frame in the video pipeline. See <xref keyref="VIDEO_MODULE_POSITION"/>.</pd>
             </plentry>
             </parml> </section>
     </refbody>
diff --git a/en-US/dita/RTC-NG/API/enum_audiosourcetype.dita b/en-US/dita/RTC-NG/API/enum_audiosourcetype.dita
index a50dc68398e..e50174af407 100644
--- a/en-US/dita/RTC-NG/API/enum_audiosourcetype.dita
+++ b/en-US/dita/RTC-NG/API/enum_audiosourcetype.dita
@@ -46,7 +46,7 @@
                 </plentry>
                 <plentry>
                     <pt><ph keyref="AUDIO_SOURCE_UNKNOWN"/></pt>
-                    <pd>100: An unknown video source.</pd>
+                    <pd>100: An unknown audio source.</pd>
                 </plentry>
             </parml>
         </section></refbody>
diff --git a/en-US/dita/RTC-NG/API/enum_rteplayerevent.dita b/en-US/dita/RTC-NG/API/enum_rteplayerevent.dita
index 6c59cf24b62..d33515862a9 100644
--- a/en-US/dita/RTC-NG/API/enum_rteplayerevent.dita
+++ b/en-US/dita/RTC-NG/API/enum_rteplayerevent.dita
@@ -29,11 +29,11 @@
                 </plentry>
                 <plentry>
                     <pt><ph keyref="kRtePlayerEventAbrFallbackToAudioOnlyLayer"/></pt>
-                    <pd>9: Due to network issues, the audio and video stream has fallen back to receiving only the audio stream.</pd>
+                    <pd>9: Due to network issues, the audio and video stream has fallen back to audio stream.</pd>
                 </plentry>
                 <plentry>
                     <pt><ph keyref="kRtePlayerEventAbrRecoverFromAudioOnlyLayer"/></pt>
-                    <pd>10: After network conditions improve, the stream has recovered from receiving only audio to receiving both audio and video streams.</pd>
+                    <pd>10: After network conditions improve, the stream has recovered from audio-only to audio and video stream.</pd>
                 </plentry>
             </parml>
         </section></refbody>