diff --git a/packages/client/ui-deliverables/src/client/locales.ts b/packages/client/ui-deliverables/src/client/locales.ts
index 5d51aec22f..3161dc614c 100644
--- a/packages/client/ui-deliverables/src/client/locales.ts
+++ b/packages/client/ui-deliverables/src/client/locales.ts
@@ -12,7 +12,7 @@ export const zh = {
   'presented.directoryOpened': '已请求打开所在文件夹',
   'presented.revealed': '已请求在文件管理器中显示',
   'presented.revealing': '正在文件管理器中显示…',
-  'presented.unavailable': '此主机没有可用的桌面，无法打开文件或文件夹',
+  'presented.unavailable': '此主机没有可用的桌面，无法使用外部程序打开文件或文件夹；文件仍可在侧边栏预览',
   'presented.retry': '重试',
   'presented.hostError': '无法读取主机桌面信息',
   'presented.directory': '打开所在文件夹',
@@ -53,7 +53,7 @@ export const en: Record<DeliverablesKey, string> = {
   'presented.directoryOpened': 'Requested opening containing folder',
   'presented.revealed': 'Requested display in file manager',
   'presented.revealing': 'Showing in file manager…',
-  'presented.unavailable': 'This Host has no desktop available to open files or folders',
+  'presented.unavailable': 'This Host has no desktop available to open files or folders in external apps. Files can still be previewed in the sidebar.',
   'presented.retry': 'Retry',
   'presented.hostError': 'Could not read the Host desktop information',
   'presented.directory': 'Open containing folder',
diff --git a/snapshots/web/present-svg/ui.expected.md b/snapshots/web/present-svg/ui.expected.md
index 6102d7ed25..cee6f084af 100644
--- a/snapshots/web/present-svg/ui.expected.md
+++ b/snapshots/web/present-svg/ui.expected.md
@@ -51,7 +51,7 @@
 - paragraph: 下方附一行核心思想说明：指令与数据以二进制统一存储在存储器中。用浏览器打开该 SVG 文件即可查看。
 - text: 本轮文件改动
 - button "打开 {{cwd}}/workspace/von-neumann.svg": von-neumann.svg
-- text: 此主机没有可用的桌面，无法打开文件或文件夹
+- text: 此主机没有可用的桌面，无法使用外部程序打开文件或文件夹；文件仍可在侧边栏预览
 - button "在侧边栏预览 von-neumann.svg"
 - text: von-neumann.svg 冯诺依曼架构示意图 SVG
 - button "在侧边栏打开 von-neumann.svg": 打开