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vesoft-inc · May 24, 2023 · 4945456 · 4945456
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diff --git a/docs-2.0/9.about-license/2.license-management-suite/2.license-center.md b/docs-2.0/9.about-license/2.license-management-suite/2.license-center.md
@@ -8,7 +8,7 @@ This article introduces the setup, homepage, license details page of LC, and how
 
 ## Preparations
 
-[You have purchased a Vesoft license](../3.purchase-license.md)
+[You have purchased a NebulaGraph license](../3.purchase-license.md)
 
 ## Set up an LC account
 
@@ -56,10 +56,23 @@ In the **Purchased Resources** section, you can view the purchased query and sto
 A license key is an encrypted string containing authorization information and serves as the unique credential for you to obtain access to the NebulaGraph Enterprise Edition database and its associated software features. There are two forms of License keys: online license keys and offline license keys.
 
 - Online license keys
-  When binding your LMID, select the **Online** mode to generate an online license key. After you enter the key into the LM service, the LM can retrieve the latest license information regularly".
+
+  An online license allows you to obtain the latest license information from LC. 
+
+  When binding your LMID, select the **Online** mode to generate an online license key. After you enter the online key into the LM service, the LM can retrieve the latest license information regularly.
 
 - Offline license keys
-  When binding your LMID, select the **Offline** mode to generate an offline license key. Compared to an online license key, after you enter an offline license key into your LM, the LM service stores fixed license information. If the license information is updated, a new offline license key must be obtained.
+
+  Compared to an online license key, an offline license key contains fixed license information. If the license information is updated, a new offline license key must be obtained.
+
+  When binding your LMID, select the **Offline** mode to generate an offline license key. After you enter the offline license key into your LM, the LM service stores fixed license information. 
+
+!!! note 
+
+    You can choose a license key type based on your LM accessibility. 
+
+    - If your LM is accessible from the internet, you can select either **Online** or **Offline** mode. The **Online** mode is recommended, as it generates an online license key.
+    - If your LM is not accessible from the internet, then **Offline** mode is the only option available for generating an offline license key, as it can't reach out to the license server to validate the key itself.
 
 For information about how to bind the ID of your LM, see the following section **Bind LMID**.
 

diff --git a/docs-2.0/9.about-license/2.license-management-suite/3.license-manager.md b/docs-2.0/9.about-license/2.license-management-suite/3.license-manager.md
@@ -6,7 +6,7 @@ This article introduces how to deploy and use an LM service, as well as how to c
 
 ## Preparations
 
-- [You have purchased a Vesoft license](../3.purchase-license.md).
+- [You have purchased a NebulaGraph license](../3.purchase-license.md).
 - You have obtained the desired LM installation package.
 
   !!! note