diff --git a/4.模型链.ipynb b/4.模型链.ipynb
index 829c97b..7477286 100644
--- a/4.模型链.ipynb
+++ b/4.模型链.ipynb
@@ -1222,6 +1222,25 @@
     "这包括要完成的任务的说明以及输出应该采用的特定格式。"
    ]
   },
+  {
+   "attachments": {},
+   "cell_type": "markdown",
+   "id": "24f30c2c",
+   "metadata": {},
+   "source": [
+    "注意：此处在原教程的基础上添加了一个示例，主要是因为\"gpt-3.5-turbo\"模型不能很好适应理解模板的意思，使用 \"text-davinci-003\" 或者\"gpt-4-0613\"可以很好的工作，因此在这里多加了示例提示让其更好的学习。\n",
+    "eg:\n",
+    "<< INPUT >>\n",
+    "\"What is black body radiation?\"\n",
+    "<< OUTPUT >>\n",
+    "```json\n",
+    "{{{{\n",
+    "    \"destination\": string \\ name of the prompt to use or \"DEFAULT\"\n",
+    "    \"next_inputs\": string \\ a potentially modified version of the original input\n",
+    "}}}}\n",
+    "```"
+   ]
+  },
   {
    "cell_type": "code",
    "execution_count": 32,