From 8311c74f03c1469d0f7d7bf29068f6c3808e5a73 Mon Sep 17 00:00:00 2001
From: TheLittleBoy <TheLittleBoy@users.noreply.github.com>
Date: Sat, 20 Sep 2014 16:30:17 +0800
Subject: [PATCH] =?UTF-8?q?=E8=A1=A5=E5=85=85=E4=B8=80=E5=8F=A5=E7=BF=BB?=
 =?UTF-8?q?=E8=AF=91?=
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---
 source/chapter1/02_a_swift_tour.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/source/chapter1/02_a_swift_tour.md b/source/chapter1/02_a_swift_tour.md
index 6aa0ce8f..d15cc47d 100755
--- a/source/chapter1/02_a_swift_tour.md
+++ b/source/chapter1/02_a_swift_tour.md
@@ -162,7 +162,7 @@ default:
 
 运行`switch`中匹配到的子句之后，程序会退出`switch`语句，并不会继续向下运行，所以不需要在每个子句结尾写`break`。
 
-你可以使用`for-in`来遍历字典，需要两个变量来表示每个键值对。
+你可以使用`for-in`来遍历字典，需要两个变量来表示每个键值对。字典是一个无序的集合，所以他们的键和值以任意顺序迭代结束。
 
 ```swift
 let interestingNumbers = [