diff --git a/playground/BugFarm/Bug1/Main.snow b/playground/BugFarm/Bug1/Main.snow
index 3468433..df241ed 100644
--- a/playground/BugFarm/Bug1/Main.snow
+++ b/playground/BugFarm/Bug1/Main.snow
@@ -1,6 +1,6 @@
 module: Main
     function: main
-        return_type: void
+        returns: void
         body:
             declare abc:int =1
         end body
diff --git a/playground/BugFarm/Bug2/Main.snow b/playground/BugFarm/Bug2/Main.snow
index 674b74b..023a778 100644
--- a/playground/BugFarm/Bug2/Main.snow
+++ b/playground/BugFarm/Bug2/Main.snow
@@ -1,7 +1,7 @@
 module: Main
     import: os
     function: main
-        return_type: void
+        returns: void
         body:
             loop:
                 init:
diff --git a/playground/BugFarm/Bug2/OS.snow b/playground/BugFarm/Bug2/OS.snow
index 6026d43..1982627 100644
--- a/playground/BugFarm/Bug2/OS.snow
+++ b/playground/BugFarm/Bug2/OS.snow
@@ -1,9 +1,9 @@
 module: os
     import: os
     function: print
-        parameter:
+        params:
             declare i1: int
-        return_type: void
+        returns: void
         body:
             syscall("PRINT",i1)
         end body
diff --git a/playground/BugFarm/Bug3/Main.snow b/playground/BugFarm/Bug3/Main.snow
index 7918328..7f76773 100644
--- a/playground/BugFarm/Bug3/Main.snow
+++ b/playground/BugFarm/Bug3/Main.snow
@@ -1,7 +1,7 @@
 module: Main
     import: os
     function: main
-        return_type: void
+        returns: void
         body:
             // 合法
             declare b1: byte = 127b
diff --git a/playground/BugFarm/Bug3/OS.snow b/playground/BugFarm/Bug3/OS.snow
index 6026d43..1982627 100644
--- a/playground/BugFarm/Bug3/OS.snow
+++ b/playground/BugFarm/Bug3/OS.snow
@@ -1,9 +1,9 @@
 module: os
     import: os
     function: print
-        parameter:
+        params:
             declare i1: int
-        return_type: void
+        returns: void
         body:
             syscall("PRINT",i1)
         end body
diff --git a/playground/BugFarm/Bug4/Main.snow b/playground/BugFarm/Bug4/Main.snow
index 0efa4b1..6333a4d 100644
--- a/playground/BugFarm/Bug4/Main.snow
+++ b/playground/BugFarm/Bug4/Main.snow
@@ -1,7 +1,7 @@
 module: Main
     import: ModuleB
     function: main
-        return_type: int
+        returns: int
         body:
             return ModuleB.fun()
         end body
diff --git a/playground/BugFarm/Bug4/a.snow b/playground/BugFarm/Bug4/a.snow
index d717032..56799b4 100644
--- a/playground/BugFarm/Bug4/a.snow
+++ b/playground/BugFarm/Bug4/a.snow
@@ -1,6 +1,6 @@
 module: ModuleA
     function: fun
-        return_type: int
+        returns: int
         body:
             return 123
         end body
diff --git a/playground/BugFarm/Bug4/b.snow b/playground/BugFarm/Bug4/b.snow
index 4db51a0..8f25548 100644
--- a/playground/BugFarm/Bug4/b.snow
+++ b/playground/BugFarm/Bug4/b.snow
@@ -1,7 +1,7 @@
 module: ModuleB
     import: ModuleA
     function: fun
-        return_type: int
+        returns: int
         body:
             return ModuleA.fun() + ModuleA.fun()
         end body
diff --git a/playground/BugFarm/Bug5/Main.snow b/playground/BugFarm/Bug5/Main.snow
index 89c6c84..d517949 100644
--- a/playground/BugFarm/Bug5/Main.snow
+++ b/playground/BugFarm/Bug5/Main.snow
@@ -3,8 +3,8 @@ module: Main
     globals:
         declare sum: int = 0
     function: main
-        parameter:
-        return_type: int
+        params:
+        returns: int
         body:
             sum = 20
 
diff --git a/playground/BugFarm/Bug5/OS.snow b/playground/BugFarm/Bug5/OS.snow
index 6026d43..1982627 100644
--- a/playground/BugFarm/Bug5/OS.snow
+++ b/playground/BugFarm/Bug5/OS.snow
@@ -1,9 +1,9 @@
 module: os
     import: os
     function: print
-        parameter:
+        params:
             declare i1: int
-        return_type: void
+        returns: void
         body:
             syscall("PRINT",i1)
         end body
diff --git a/playground/BugFarm/Bug6/Main.snow b/playground/BugFarm/Bug6/Main.snow
index 7a5bdae..34768c6 100644
--- a/playground/BugFarm/Bug6/Main.snow
+++ b/playground/BugFarm/Bug6/Main.snow
@@ -3,8 +3,8 @@ module: Main
     globals:
         declare sum: int = 123
     function: main
-        parameter:
-        return_type: int
+        params:
+        returns: int
         body:
             os.print(sum)
             return 0
diff --git a/playground/BugFarm/Bug6/OS.snow b/playground/BugFarm/Bug6/OS.snow
index 6026d43..1982627 100644
--- a/playground/BugFarm/Bug6/OS.snow
+++ b/playground/BugFarm/Bug6/OS.snow
@@ -1,9 +1,9 @@
 module: os
     import: os
     function: print
-        parameter:
+        params:
             declare i1: int
-        return_type: void
+        returns: void
         body:
             syscall("PRINT",i1)
         end body