diff --git a/lib/zin/wg/think3c/js/v1.js b/lib/zin/wg/think3c/js/v1.js
index 7f606d0376..24c6409bbc 100644
--- a/lib/zin/wg/think3c/js/v1.js
+++ b/lib/zin/wg/think3c/js/v1.js
@@ -129,10 +129,21 @@ function getRegionInfo(pixels, visited, x, y, width, height)
     return region;
 }
 
+/**
+ * 查找区域。
+ * Find regions.
+ *
+ * @param  object pixels
+ * @param  number width
+ * @param  number height
+ * @access public
+ * @return array
+ */
 function findRegions(pixels, width, height)
 {
     const visited = {};
     const regions = [];
+
     for(let y = 0; y < height; y++)
     {
         for(let x = 0; x < width; x++)