diff --git a/motd b/motd
index 54aee9c..092f141 100644
--- a/motd
+++ b/motd
@@ -1,8 +1,4 @@
 ###############################################################
-#                          WARNING!!!!                        #
-# This is a sandbox environment. Using personal credentials   #
-# is HIGHLY! discouraged. Any consequences of doing so, are   #
-# completely the user's responsibilites.                      #
-#                                                             #
-# The PWD team.                                               #
+#                          警告!                               #
+#         该实验室是一个Docker沙盒环境，注意个人信息保密!          #
 ###############################################################