diff --git a/src/framework/core.c b/src/framework/core.c
index be7d45e..059d613 100644
--- a/src/framework/core.c
+++ b/src/framework/core.c
@@ -818,6 +818,42 @@ measure_speed_for_every_source (Source_t sources[], int size, double speed_recor
 
 
 
+/**
+ * @brief 填充专用测速链接
+ *
+ * 该宏的作用是将某个 target 源的专用测速链接填充到 Source_t 中的 speed_url 字段中
+ *
+ * 即使不需要该宏也是可以的，但是代价就是维护者要维护比较重复的两个字段: url 和 speed_url
+ *
+ * @note 该宏仅当在 recipe 中使用， 由 <category>_<target>_sources_prepare() 调用
+ */
+#define chsrc_sources_prepare_speedurl_with_postfix(target,str) sources_prepare_speedurl_with_postfix(target##_sources, target##_sources_n, str)
+static void
+sources_prepare_speedurl_with_postfix (Source_t sources[], int n, char *postfix)
+{
+  for (int i=0; i<n; i++)
+    {
+      Source_t *src = &sources[i];
+
+      ProviderType_t type = src->provider->type;
+
+      if (IS_DedicatedMirrorSite==type || IS_UpstreamProvider==type)
+        {
+          /* 这两个不用填，因为定义这二者的时候如果给了整体测速URL，则就是ACCURATE的，我们直接会DelegateTo那里 */
+          continue;
+        }
+
+      if (src->url)
+        {
+          /* 为空时才修改 或者里面是脏数据 */
+          if (NULL==src->speed_measure_url || !is_url(src->speed_measure_url))
+            src->speed_measure_url = xy_2strjoin (src->url, postfix);
+        }
+    }
+}
+
+
+
 /**
  * 自动测速选择镜像站和源
  */
diff --git a/src/framework/struct.h b/src/framework/struct.h
index b282b1d..a2dece8 100644
--- a/src/framework/struct.h
+++ b/src/framework/struct.h
@@ -92,6 +92,8 @@ Source_t;
 #define DelegateToMirror    NULL
 /* 看到该注释的贡献者，你可以帮忙寻找专用测速链接 */
 #define NeedContribute      NULL
+/* 由 _sources_prepare 填充 */
+#define FeedBySourcesPrepare NULL
 
 #define def_sources_n(t) const size_t t##_sources_n = xy_arylen(t##_sources)
 
diff --git a/src/recipe/os/APT/Debian.c b/src/recipe/os/APT/Debian.c
index dc933dc..76dab79 100644
--- a/src/recipe/os/APT/Debian.c
+++ b/src/recipe/os/APT/Debian.c
@@ -8,9 +8,11 @@
  *                |
  * Created On     : <2023-09-02>
  * Major Revision :      3
- * Last Modified  : <2025-06-16>
+ * Last Modified  : <2025-07-11>
  * ------------------------------------------------------------*/
 
+#define OS_Debian_Speed_URL_Postfix "/dists/bookworm/main/Contents-all.gz"
+
 static SourceProvider_t os_debian_upstream =
 {
   def_upstream, "https://ftp.debian.org/debian/",
@@ -19,25 +21,39 @@ static SourceProvider_t os_debian_upstream =
 
 
 /**
- * @update 2024-11-21
+ * @update 2025-07-11
  */
 static Source_t os_debian_sources[] =
 {
-  {&os_debian_upstream, "http://deb.debian.org/debian"},
-  {&MirrorZ,          "https://mirrors.cernet.edu.cn/debian/"},
-  {&Ali,              "https://mirrors.aliyun.com/debian"},
-  {&Volcengine,       "https://mirrors.volces.com/debian"},
-  {&Bfsu,             "https://mirrors.bfsu.edu.cn/debian"},
-  {&Ustc,             "https://mirrors.ustc.edu.cn/debian"},
-  {&Tuna,             "https://mirrors.tuna.tsinghua.edu.cn/debian"},
-  {&Tencent,          "https://mirrors.tencent.com/debian"},
-  // {&Tencent_Intra, "https://mirrors.tencentyun.com/debian"},
-  // {&Netease,          "https://mirrors.163.com/debian"}, /* 不启用原因：过慢 */
-  // {&Sohu,             "https://mirrors.sohu.com/debian"} /* 不启用原因：过慢 */
+  {&os_debian_upstream, "http://deb.debian.org/debian", DelegateToUpstream},
+
+  /* MirrorZ 的速度这么测也是可以的 */
+  {&MirrorZ,          "https://mirrors.cernet.edu.cn/debian/", FeedBySourcesPrepare },
+  {&Ali,              "https://mirrors.aliyun.com/debian",  FeedBySourcesPrepare},
+  {&Volcengine,       "https://mirrors.volces.com/debian",  FeedBySourcesPrepare},
+  {&Bfsu,             "https://mirrors.bfsu.edu.cn/debian", FeedBySourcesPrepare},
+  {&Ustc,             "https://mirrors.ustc.edu.cn/debian", FeedBySourcesPrepare},
+  {&Tuna,             "https://mirrors.tuna.tsinghua.edu.cn/debian", FeedBySourcesPrepare},
+  {&Tencent,          "https://mirrors.tencent.com/debian", FeedBySourcesPrepare},
+
+  // {&Tencent_Intra, "https://mirrors.tencentyun.com/debian", FeedBySourcesPrepare},
+
+  /* 不启用原因：过慢 */
+  // {&Netease,       "https://mirrors.163.com/debian", FeedBySourcesPrepare},
+
+  /* 不启用原因：过慢 */
+  // {&Sohu,          "https://mirrors.sohu.com/debian", FeedBySourcesPrepare}
 };
 def_sources_n(os_debian);
 
 
+void
+os_debian_sources_prepare ()
+{
+  chsrc_sources_prepare_speedurl_with_postfix (os_debian, OS_Debian_Speed_URL_Postfix);
+}
+
+
 void
 os_debian_getsrc (char *option)
 {