docs: translate sample report structure to English

Author: XiaoBoAI

docs/applications/zero_shot_evaluation.md

@@ -364,23 +364,23 @@ The generated report includes four sections, each generated in parallel:
 
 !!! example "Sample Report Structure"
     ```markdown
-    # 评估报告
+    # Evaluation Report
 
-    ## 执行摘要
-    本评估旨在衡量主流大语言模型在翻译任务的性能...
+    ## Executive Summary
+    This evaluation assessed the performance of mainstream LLMs on translation tasks...
 
-    ## 排名解释
-    qwen-plus 以 67.9% 的综合胜率位居榜首，主要原因是...
+    ## Ranking Explanation
+    qwen-plus ranks first with a 67.9% win rate, primarily because...
 
-    ## 模型分析
+    ## Model Analysis
     ### qwen-plus
-    **总体评估**: 表现最佳，胜率最高...
-    **关键优势**: 术语准确性高、语言风格规范...
-    **改进建议**: 进一步优化句式多样性...
+    **Overall Assessment**: Best performer with highest win rate...
+    **Key Strengths**: High terminological accuracy, appropriate writing style...
+    **Improvement Suggestions**: Further optimize sentence variety...
 
-    ## 典型案例
+    ## Representative Cases
     ### Case 1
-    **Query:** 请将以下内容翻译成英文...
+    **Query:** Translate the following into English...
     **Winner:** qwen-plus
     **Evaluation Reason:** Response A uses more natural phrasing...
     ```