diff --git a/Binance.TradeRobot.Business/Business/TradeBusiness/D21TradeBusiness.cs b/Binance.TradeRobot.Business/Business/TradeBusiness/D21TradeBusiness.cs
index 76773fc..734c5bb 100644
--- a/Binance.TradeRobot.Business/Business/TradeBusiness/D21TradeBusiness.cs
+++ b/Binance.TradeRobot.Business/Business/TradeBusiness/D21TradeBusiness.cs
@@ -49,5 +49,19 @@ namespace Binance.TradeRobot.Business
                 logManager.GetLogger(robot.ExecuteLogKey).Error(ex, stringBuilder.ToString());
             }
         }
+
+        public void LongCross<T, T1>(T singalRequest, T1 robot, decimal newestPrice, bool isRemedy)
+            where T : BaseSingalRequest
+            where T1 : RobotResponse
+        {
+            throw new NotImplementedException();
+        }
+
+        public void ShortCross<T, T1>(T singalRequest, T1 robot, decimal newestPrice, bool isRemedy)
+            where T : BaseSingalRequest
+            where T1 : RobotResponse
+        {
+            throw new NotImplementedException();
+        }
     }
 }
diff --git a/Binance.TradeRobot.Business/Business/TradeBusiness/ITradeBusiness.cs b/Binance.TradeRobot.Business/Business/TradeBusiness/ITradeBusiness.cs
index 9a38acd..f253f75 100644
--- a/Binance.TradeRobot.Business/Business/TradeBusiness/ITradeBusiness.cs
+++ b/Binance.TradeRobot.Business/Business/TradeBusiness/ITradeBusiness.cs
@@ -8,5 +8,9 @@ namespace Binance.TradeRobot.Business
         Enums.TradePolicy TradePolicy { get; }
 
         void TrendChanged<T, T1>(T singalRequest, T1 robot) where T : BaseSingalRequest where T1 : RobotResponse;
+
+        void LongCross<T, T1>(T singalRequest, T1 robot, decimal newestPrice,bool isRemedy) where T : BaseSingalRequest where T1 : RobotResponse;
+
+        void ShortCross<T, T1>(T singalRequest, T1 robot, decimal newestPrice, bool isRemedy) where T : BaseSingalRequest where T1 : RobotResponse;
     }
 }