diff --git a/en/guide/ll-builder/introduction.md b/en/guide/ll-builder/introduction.md
index 50e701d..d067966 100644
--- a/en/guide/ll-builder/introduction.md
+++ b/en/guide/ll-builder/introduction.md
@@ -11,8 +11,11 @@ SPDX-License-Identifier: LGPL-3.0-or-later
 The main functions are as follows:
 
 - Supports building in a standalone sandbox.
+
 <!-- - Defined a version management system. -->
-- Provides a list of software development kits.
+
+- Provides DTK software development kits.
+
 <!-- - Contains a complete release process. -->
 
 View the help information for the `ll-builder` command:
@@ -38,4 +41,6 @@ Arguments:
                  export
                  push
                  convert
+                 import
+                 extract
 ```
diff --git a/en/guide/start/how_to_use.md b/en/guide/start/how_to_use.md
index 998c291..ff2d7fc 100644
--- a/en/guide/start/how_to_use.md
+++ b/en/guide/start/how_to_use.md
@@ -6,7 +6,7 @@ SPDX-License-Identifier: LGPL-3.0-or-later
 
 # Build Linglong applications
 
-Here, we use `deepin-calculator` as an example for building a Linglong application from source code.
+Taking [deepin-calculator](https://github.com/linuxdeepin/deepin-calculator.git) as an example, introduce the process of building a Linglong package from source code.
 
 ## Create Linglong project
 
diff --git a/guide/ll-builder/introduction.md b/guide/ll-builder/introduction.md
index 103da66..39c5ecd 100644
--- a/guide/ll-builder/introduction.md
+++ b/guide/ll-builder/introduction.md
@@ -11,11 +11,14 @@ SPDX-License-Identifier: LGPL-3.0-or-later
 主要功能如下：
 
 - 支持在独立容器内构建。
+
 <!-- - 定义了一套版本管理系统。 -->
-- 提供 sdk 开发套件列表。
+
+- 提供 DTK 开发套件。
+
 <!-- - 包含完整推送发布流程。 -->
 
-查看`ll-builder`命令的帮助信息：
+查看 `ll-builder`命令的帮助信息：
 
 ```bash
 ll-builder --help
@@ -38,4 +41,6 @@ Arguments:
                  export
                  push
                  convert
+                 import
+                 extract
 ```
diff --git a/guide/start/how_to_use.md b/guide/start/how_to_use.md
index 286a8ad..ad7f0bb 100644
--- a/guide/start/how_to_use.md
+++ b/guide/start/how_to_use.md
@@ -6,7 +6,7 @@ SPDX-License-Identifier: LGPL-3.0-or-later
 
 # 构建玲珑应用
 
-这里以 [deepin-calculator](https://github.com/linuxdeepin/deepin-calculator.git) 作为从源码构建玲珑应用的例子。
+以 [deepin-calculator](https://github.com/linuxdeepin/deepin-calculator.git) 为例，介绍从源码构建玲珑包的过程。
 
 玲珑应用的 appid 需要使用倒置域名的方式命名。
 
@@ -115,7 +115,7 @@ ll-builder run --exec /bin/bash
 
 # 转换 deb 应用
 
-以“百度网盘”为例，接下来介绍将 deb 包转为为玲珑包的过程。
+以百度网盘为例，介绍将 deb 包转为玲珑包的过程。
 
 ## 获取软件包