diff --git a/docs/v0.3/en/greptimecloud/usage.md b/docs/v0.3/en/greptimecloud/usage.md
index 20a56a11f..d88cf169b 100644
--- a/docs/v0.3/en/greptimecloud/usage.md
+++ b/docs/v0.3/en/greptimecloud/usage.md
@@ -57,7 +57,7 @@ VALUES
     ("host1", "idc_b", 90.0, 39.9, 60.6, 1667446798250);
 ```
 
-The size of the request is 950 bytes (38 _25). The WCU of this request is 1. If you insert 40 rows in a single statement, the size is 1520 bytes (38_ 40), and the WCU of this request is 2.
+The size of the request is 950 bytes (38 x 25). The WCU of this request is 1. If you insert 40 rows in a single statement, the size is 1520 bytes (38 x 40), and the WCU of this request is 2.
 
 ### RCU (Read Capacity Unit)
 
diff --git a/docs/v0.3/zh/greptimecloud/usage.md b/docs/v0.3/zh/greptimecloud/usage.md
index 6f8c5799e..d173bcdc9 100644
--- a/docs/v0.3/zh/greptimecloud/usage.md
+++ b/docs/v0.3/zh/greptimecloud/usage.md
@@ -52,7 +52,7 @@ VALUES
     ("host1", "idc_b", 90.0, 39.9, 60.6, 1667446798250);
 ```
 
-该请求的大小为 950 字节（38 _25）。此请求的 WCU 为 1。如果你在单个语句中插入 40 行数据，则大小为 1520 字节（38_ 40），此请求的 WCU 为 2。
+该请求的大小为 950 字节（38 x 25）。此请求的 WCU 为 1。如果你在单个语句中插入 40 行数据，则大小为 1520 字节（38 x 40），此请求的 WCU 为 2。
 
 ### RCU (Read Capacity Unit)
 
diff --git a/docs/v0.4/en/greptimecloud/usage.md b/docs/v0.4/en/greptimecloud/usage.md
index 20a56a11f..d88cf169b 100644
--- a/docs/v0.4/en/greptimecloud/usage.md
+++ b/docs/v0.4/en/greptimecloud/usage.md
@@ -57,7 +57,7 @@ VALUES
     ("host1", "idc_b", 90.0, 39.9, 60.6, 1667446798250);
 ```
 
-The size of the request is 950 bytes (38 _25). The WCU of this request is 1. If you insert 40 rows in a single statement, the size is 1520 bytes (38_ 40), and the WCU of this request is 2.
+The size of the request is 950 bytes (38 x 25). The WCU of this request is 1. If you insert 40 rows in a single statement, the size is 1520 bytes (38 x 40), and the WCU of this request is 2.
 
 ### RCU (Read Capacity Unit)
 
diff --git a/docs/v0.4/zh/greptimecloud/usage.md b/docs/v0.4/zh/greptimecloud/usage.md
index 6f8c5799e..d173bcdc9 100644
--- a/docs/v0.4/zh/greptimecloud/usage.md
+++ b/docs/v0.4/zh/greptimecloud/usage.md
@@ -52,7 +52,7 @@ VALUES
     ("host1", "idc_b", 90.0, 39.9, 60.6, 1667446798250);
 ```
 
-该请求的大小为 950 字节（38 _25）。此请求的 WCU 为 1。如果你在单个语句中插入 40 行数据，则大小为 1520 字节（38_ 40），此请求的 WCU 为 2。
+该请求的大小为 950 字节（38 x 25）。此请求的 WCU 为 1。如果你在单个语句中插入 40 行数据，则大小为 1520 字节（38 x 40），此请求的 WCU 为 2。
 
 ### RCU (Read Capacity Unit)