diff --git a/translate/translate.go b/translate/translate.go
index ff3efaa..f9e53b4 100644
--- a/translate/translate.go
+++ b/translate/translate.go
@@ -2,7 +2,7 @@
  * @Author: Vincent Young
  * @Date: 2024-09-16 11:59:24
  * @LastEditors: Vincent Yang
- * @LastEditTime: 2024-11-01 00:42:43
+ * @LastEditTime: 2024-11-01 12:45:44
  * @FilePath: /DeepLX/translate/translate.go
  * @Telegram: https://t.me/missuo
  * @GitHub: https://github.com/missuo
@@ -161,6 +161,13 @@ func TranslateByDeepLX(sourceLang, targetLang, text string, tagHandling string,
 		})
 	}
 
+	hasRegionalVariant := false
+	targetLangParts := strings.Split(targetLang, "-")
+	targetLangCode := targetLangParts[0]
+	if len(targetLangParts) > 1 {
+		hasRegionalVariant = true
+	}
+
 	// Prepare translation request
 	id := getRandomNumber()
 	postData := &PostData{
@@ -169,17 +176,19 @@ func TranslateByDeepLX(sourceLang, targetLang, text string, tagHandling string,
 		ID:      id,
 		Params: Params{
 			CommonJobParams: CommonJobParams{
-				Mode: "translate",
+				Mode:            "translate",
+				RegionalVariant: map[bool]string{true: targetLang, false: ""}[hasRegionalVariant],
 			},
 			Lang: Lang{
 				SourceLangComputed: strings.ToUpper(sourceLang),
-				TargetLang:         strings.ToUpper(targetLang),
+				TargetLang:         strings.ToUpper(targetLangCode),
 			},
 			Jobs:      jobs,
 			Priority:  1,
 			Timestamp: getTimeStamp(getICount(text)),
 		},
 	}
+	fmt.Println(postData)
 
 	// Make translation request
 	result, err := makeRequest(postData, "LMT_handle_jobs", proxyURL)
diff --git a/translate/types.go b/translate/types.go
index ef76bf5..7e20003 100644
--- a/translate/types.go
+++ b/translate/types.go
@@ -2,7 +2,7 @@
  * @Author: Vincent Young
  * @Date: 2024-09-16 11:59:24
  * @LastEditors: Vincent Yang
- * @LastEditTime: 2024-11-01 00:39:49
+ * @LastEditTime: 2024-11-01 12:47:47
  * @FilePath: /DeepLX/translate/types.go
  * @Telegram: https://t.me/missuo
  * @GitHub: https://github.com/missuo
@@ -21,7 +21,8 @@ type Lang struct {
 
 // CommonJobParams represents common parameters for translation jobs
 type CommonJobParams struct {
-	Mode string `json:"mode"`
+	Mode            string `json:"mode"`
+	RegionalVariant string `json:"regionalVariant"`
 }
 
 // Sentence represents a sentence in the translation request