From 01837fc1436e0975bc471c727a1cf4793d62e96b Mon Sep 17 00:00:00 2001
From: jaysunxiao <jaysunxiao.gmail.com>
Date: Sun, 26 Jun 2022 21:06:05 +0800
Subject: [PATCH] doc

---
 doc/demo07_collision/collision.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/doc/demo07_collision/collision.md b/doc/demo07_collision/collision.md
index e2c550a..cc6cde7 100644
--- a/doc/demo07_collision/collision.md
+++ b/doc/demo07_collision/collision.md
@@ -36,7 +36,7 @@
 
 - Area2D，一块区域，能够检测到物体的碰撞，但是不会做任何操作
 
-- 碰撞检测Layer和Mask，Layer表明当前刚体属于那一层，Mask表面当前
+- 碰撞检测Layer和Mask，Layer表明当前刚体属于那一层，Mask表面当前物体的遮罩
 
 ![Image text](image/collision-9.JPG)
 ![Image text](image/collision-10.JPG)