diff --git a/backend/ai_services/views.py b/backend/ai_services/views.py
index 695d593..87ccae6 100644
--- a/backend/ai_services/views.py
+++ b/backend/ai_services/views.py
@@ -239,20 +239,23 @@ class TranscriptionTaskViewSet(viewsets.ModelViewSet):
                 
                 if isinstance(transcription_data, dict):
                     # 确定包含实际内容的字典源
-                    # 下载的 JSON 可能结构为 {"TaskId": "...", "Transcription": { "Sentences": [...] }}
-                    # 或者 {"Sentences": [...]}
                     content_source = transcription_data
                     
-                    # 如果存在嵌套的 Transcription 键，且它是字典，则优先使用它
-                    if 'Transcription' in transcription_data and isinstance(transcription_data['Transcription'], dict):
-                        content_source = transcription_data['Transcription']
-                        logger.info(f"Using nested Transcription dict, keys: {content_source.keys()}")
+                    # 关键修复：
+                    # 阿里云返回的 JSON 可能是 {"Transcription": {"Sentences": ...}} 也可能是 {"Sentences": ...}
+                    # 之前的逻辑虽然尝试了 content_source = transcription_data['Transcription']，但如果 key 不存在会报错
+                    # 且如果是 {"TaskId": "...", "Transcription": {"Sentences": ...}} 这种结构，需要先剥离外层
+                    
+                    # 尝试找到真正的 sentences/paragraphs 所在的字典
+                    # 优先查找 'Transcription' 键，如果它对应的是字典，那么数据很可能在里面
+                    if 'Transcription' in content_source and isinstance(content_source['Transcription'], dict):
+                        content_source = content_source['Transcription']
+                        logger.info(f"Drilled down to nested 'Transcription' key. Keys: {content_source.keys()}")
                     
                     # 尝试提取 Sentences
                     sentences = content_source.get('Sentences', [])
                     
                     # 尝试提取 Paragraphs
-                    # 注意：Paragraphs 字段本身可能是一个列表，或者是一个包含 Paragraphs 键的字典
                     paragraphs_data = content_source.get('Paragraphs', [])
                     
                     if sentences:
@@ -264,7 +267,8 @@ class TranscriptionTaskViewSet(viewsets.ModelViewSet):
                         if isinstance(paragraphs_data, dict):
                              # 有时结构是 {"Paragraphs": {"Paragraphs": [...]}} 或者 {"Paragraphs": [...]}
                              para_list = paragraphs_data.get('Paragraphs', []) 
-                             # 如果取出来是空的，但 paragraphs_data 本身有内容，可能结构不同，暂不处理深层嵌套
+                             if not para_list and isinstance(paragraphs_data, list):
+                                  para_list = paragraphs_data
                         elif isinstance(paragraphs_data, list):
                              para_list = paragraphs_data