Update app.py

Fix translation by embedding language tags

app.py

@@ -20,12 +20,9 @@ try:
                 summary_text = response.generated_text if hasattr(response, 'generated_text') and response.generated_text else response.summary_text if hasattr(response, 'summary_text') and response.summary_text else None
                 if not summary_text:
                     return "摘要生成失败，属性缺失。"
-                # 使用 translation 方法
-                translated_response = translation_client.translation(
-                    summary_text,
-                    src_lang="en",
-                    tgt_lang="zh"
-                )
+                # 将语言信息嵌入输入，<2en>表示英文，<2zh>表示中文
+                input_for_translation = f"<2en> {summary_text} <2zh>"
+                translated_response = translation_client.translation(input_for_translation)
                 print(f"Translation API Response: {translated_response}")
                 return translated_response if translated_response else "翻译失败，请重试。"
             except Exception as e: