diff --git a/The Swift Programming Language/02Language Guide/10Properties.md b/The Swift Programming Language/02Language Guide/10Properties.md
index 394bf80..20abc40 100644
--- a/The Swift Programming Language/02Language Guide/10Properties.md	
+++ b/The Swift Programming Language/02Language Guide/10Properties.md	
@@ -52,7 +52,7 @@ rangeOfThreeItems.firstValue = 6
 let rangeOfFourItems = FixedLengthRange(firstValue: 0, length: 4)
 // 该区间表示整数0，1，2，3
 rangeOfFourItems.firstValue = 6
-// 尽管firstValue诗歌变量属性，这里还是会报错
+// 尽管firstValue是个变量属性，这里还是会报错
 
 ```