diff --git a/api/graphics3d/Scene.d.ts b/api/graphics3d/Scene.d.ts
index 51932db0b04fa612e59a2dd0bf6448a2de295e81..8bfdbf640745dd6cef9a60d02e96d1f6928abefd 100644
--- a/api/graphics3d/Scene.d.ts
+++ b/api/graphics3d/Scene.d.ts
@@ -122,7 +122,7 @@ export interface RaycastResult {
 export interface RaycastParameters {
   /**
    * If defined, search only the nodes in the hierarchy under this node.
-   *
+   * If undefined，search all the nodes in the scene
    * @type { ?Node }
    * @syscap SystemCapability.ArkUi.Graphics3D
    * @since 20
diff --git a/api/graphics3d/SceneResources.d.ts b/api/graphics3d/SceneResources.d.ts
index 9ab91a1f4af05ed5842f596a69df099ee744fc27..4f41a9d8698de82d2421534d9f50e13fe0fb9df9 100644
--- a/api/graphics3d/SceneResources.d.ts
+++ b/api/graphics3d/SceneResources.d.ts
@@ -195,7 +195,7 @@ export enum MaterialType {
 }
 
 /**
- * The enum of pbr material cull mode.
+ * The enum of PBR material cull mode.
  * 
  * @enum { number }
  * @syscap SystemCapability.ArkUi.Graphics3D
@@ -391,7 +391,7 @@ export interface MaterialProperty {
  */
 export interface MetallicRoughnessMaterial extends Material {
   /**
-   * Base color factor of pbr material.
+   * Base color factor of PBR material.
    * Value of factor.xyzw defines rgba color.
    * 
    * @type { MaterialProperty }
@@ -401,7 +401,7 @@ export interface MetallicRoughnessMaterial extends Material {
   baseColor: MaterialProperty;
 
   /**
-   * Normal factor of pbr material.
+   * Normal factor of PBR material.
    * Value of factor.x defines normal scale.
    * 
    * @type { MaterialProperty }
@@ -421,7 +421,7 @@ export interface MetallicRoughnessMaterial extends Material {
   material: MaterialProperty;
 
   /**
-   * Ambient occlusion of pbr material.
+   * Ambient occlusion of PBR material.
    * Value of factor.x defines ambient occlusion factor.
    * 
    * @type { MaterialProperty }
@@ -431,7 +431,7 @@ export interface MetallicRoughnessMaterial extends Material {
   ambientOcclusion: MaterialProperty;
 
   /**
-   * Emissive property of pbr material.
+   * Emissive property of PBR material.
    * 
    * @type { MaterialProperty }
    * @syscap SystemCapability.ArkUi.Graphics3D
@@ -470,7 +470,7 @@ export interface MetallicRoughnessMaterial extends Material {
   clearCoatNormal: MaterialProperty;
 
   /**
-   * Sheen color of pbr material.
+   * Sheen color of PBR material.
    * Value of factor.xyz defines RGB sheen color,
    * Value of factor.w defines sheen roughness.
    * 
@@ -481,7 +481,7 @@ export interface MetallicRoughnessMaterial extends Material {
   sheen: MaterialProperty;
 
   /**
-   * Specular color of pbr material.
+   * Specular color of PBR material.
    * Value of factor.xyz defines RGB specular color,
    * Value of factor.w defines specular intensity.
    *