update exp hint

i18n.json

@@ -146,7 +146,7 @@
     "exp_value_part1": "，你有",
     "exp_value_part2": "点经验",
     "exp_value_part3": "，你的战斗力是",
-    "exp_value_part4": "。正式上线前这些积分可能被重置",
+    "exp_value_part4": "。竞技场部分积分按赛季重置。",
     "lp_low_opponent": "你的生命已经如风中残烛了！",
     "lp_low_self": "背水一战！",
     "kicked_by_player": "被请出了房间",