diff --git a/robowaiter/behavior_tree/ptml/ptmlCompiler.py b/robowaiter/behavior_tree/ptml/ptmlCompiler.py
index 216c3f5..b3b5b12 100644
--- a/robowaiter/behavior_tree/ptml/ptmlCompiler.py
+++ b/robowaiter/behavior_tree/ptml/ptmlCompiler.py
@@ -93,15 +93,21 @@ def format_trans_to_bracket(file_path: str) -> str:
 
         level = 0
         for i in ptml_tab:
+
+            if i.startswith('//'):
+                continue
+
             new_level = counter_(i) // 4
             if new_level == level:
                 ptml_new += i
             elif new_level > level:
                 ptml_new += '{\n' + i
+                level += 1
             elif new_level < level:
                 ptml_new += '\n}' + i
-            level = new_level
-        ptml_new += '}'
+                level -= 1
+        for i in range(level):
+            ptml_new += '}'
 
     import re
     new_path = re.sub('/[a-zA-Z0-9_]*\.ptml', '/bracket_ptml.ptml',file_path)
diff --git a/robowaiter/behavior_tree/ptml/test/bracket_ptml.ptml b/robowaiter/behavior_tree/ptml/test/bracket_ptml.ptml
index 1dbbf34..ae237e0 100644
--- a/robowaiter/behavior_tree/ptml/test/bracket_ptml.ptml
+++ b/robowaiter/behavior_tree/ptml/test/bracket_ptml.ptml
@@ -1,11 +1,6 @@
 selector
 {
-    selector
-{
-        cond HasMap()
-        act ExploreEnv()
-
-}    sequence
+    sequence
 {
         cond Chatting()
         act DealChat()
@@ -15,6 +10,6 @@ selector
         cond HasSubTask()
         sequence
 {
-            cond At(Robot,Table)
+            act SubTaskPlaceHolder()
 
-}        cond At(Robot,Table)}
\ No newline at end of file
+}        cond At(Talb,ea)}}
\ No newline at end of file
diff --git a/robowaiter/behavior_tree/ptml/test/tab_test.ptml b/robowaiter/behavior_tree/ptml/test/tab_test.ptml
index 6753f4e..cabe285 100644
--- a/robowaiter/behavior_tree/ptml/test/tab_test.ptml
+++ b/robowaiter/behavior_tree/ptml/test/tab_test.ptml
@@ -1,5 +1,12 @@
 selector
+//    selector
+//        cond HasMap()
+//        act ExploreEnv()
     sequence
         cond Chatting()
         act DealChat()
-    act At(Coffee,Table)
+    sequence
+        cond HasSubTask()
+        sequence
+            act SubTaskPlaceHolder()
+        cond At(Talb,ea)
\ No newline at end of file