Update SkeletonHelper.html (#26693)

Author: sdarpeng

docs/api/zh/helpers/SkeletonHelper.html

@@ -36,8 +36,7 @@ <h2>构造函数</h2>
 
 		<h3>[name]( [param:Object3D object] )</h3>
 		<p>
-		object -- Usually an instance of [page:SkinnedMesh]. However, any instance of [page:Object3D] can be used if it represents
-		a hierarchy of [page:Bone Bone]s (via [page:Object3D.children]).
+		object -- 通常是 [page:SkinnedMesh]的实例. 实际上, 只要子级存在[page:Bone Bone]s的任何 [page:Object3D] 的实例都可以，(参考 [page:Object3D.children]).
 		</p>
 
 
@@ -50,7 +49,7 @@ <h3>[property:Array bones]</h3>
 
 		<h3>[property:Boolean isSkeletonHelper]</h3>
 		<p>
-			Read-only flag to check if a given object is of type [name].
+			只读属性，用以检查该给定对象是否是 [name].
 		</p>
 
 		<h3>[property:Object3D root]</h3>