diff --git a/api/@internal/component/ets/tab_content.d.ts b/api/@internal/component/ets/tab_content.d.ts
index 0b608df9b788f09b288528d740a3b94c946c3b78..fa475a42583812c3a4c36425f6acabc6613eab28 100644
--- a/api/@internal/component/ets/tab_content.d.ts
+++ b/api/@internal/component/ets/tab_content.d.ts
@@ -516,10 +516,9 @@ declare interface TabBarIconStyle {
  */
 declare class TabBarSymbol {
   /**
-   * Symbol icon in the normal style.
+   * The properties of the symbol icon in the tab bar need to be unselected.
    *
    * @type { SymbolGlyphModifier }
-   * @default fontColor: #66182431, renderingStrategy: SymbolRenderingStrategy.MULTIPLE_OPACITY, fontSize: 24vp
    * @syscap SystemCapability.ArkUI.ArkUI.Full
    * @atomicservice
    * @since 12
@@ -537,10 +536,9 @@ declare class TabBarSymbol {
   normal: SymbolGlyphModifier;
 
   /**
-   * Symbol icon in the selected style.
+   * The properties of the symbol icon in the tab bar need to be unselected.
    *
    * @type { ?SymbolGlyphModifier }
-   * @default fontColor: #ff007dff, renderingStrategy: SymbolRenderingStrategy.MULTIPLE_OPACITY, fontSize: 24vp
    * @syscap SystemCapability.ArkUI.ArkUI.Full
    * @atomicservice
    * @since 12
diff --git a/api/@ohos.arkui.ArcAlphabetIndexer.d.ts b/api/@ohos.arkui.ArcAlphabetIndexer.d.ts
index 1ee5480c98bc7ef1ae2016a8b977490394949011..22f78240c337ae32816e793562ef4d6062815c1d 100755
--- a/api/@ohos.arkui.ArcAlphabetIndexer.d.ts
+++ b/api/@ohos.arkui.ArcAlphabetIndexer.d.ts
@@ -282,7 +282,7 @@ declare class ArcAlphabetIndexerAttribute extends CommonMethod<ArcAlphabetIndexe
  * @crossplatform
  * @atomicservice
  * @uicomponent
- * @since 20
+ * @since 19
  * @noninterop
  */
 declare const ArcAlphabetIndexer: ArcAlphabetIndexerInterface;