diff --git a/02_Swift_interview_questions/Software_Development_Terminology.md b/02_Swift_interview_questions/Software_Development_Terminology.md
index 5b9b28d..91a2cb4 100644
--- a/02_Swift_interview_questions/Software_Development_Terminology.md
+++ b/02_Swift_interview_questions/Software_Development_Terminology.md
@@ -6,7 +6,7 @@
 * question mark ?
 * exclamation mark !
 * dash -
-* underline _
+* underscore _
 * asterisk *
 * slash /
 * backslash \
@@ -259,4 +259,4 @@
 ### Code Mess
 * Spaghetti code (意大利面代码，表示乱的搅在了一起)
 * Ravioli code (意大利饺子代码，表示代码分了模块)
-* Lasagna code (千层面代码，表示代码分了层)
\ No newline at end of file
+* Lasagna code (千层面代码，表示代码分了层)