diff --git a/docs/Application_guide/en/network-comm/nic/ethernet/ethernet-wan-example.md b/docs/Application_guide/en/network-comm/nic/ethernet/ethernet-wan-example.md
index 061a992f8fe8100f0e0016e87513a69da2c0bf6d..ac7b91f4d65d02766b4936c709dbfb518b1c87dc 100644
--- a/docs/Application_guide/en/network-comm/nic/ethernet/ethernet-wan-example.md
+++ b/docs/Application_guide/en/network-comm/nic/ethernet/ethernet-wan-example.md
@@ -120,7 +120,7 @@ The following examples demonstrate two methods of TCP communication using Ethern
 
 **TCP client binds Ethernet NIC for communication**
 
-In this example, the module performs TCP communication by using the Ethernet NIC and calls *sock.bind()* in the socket module to specify the Ethernet NIC for data sending.
+In this example, the module performs TCP communication by using the Ethernet NIC and calls `sock.bind()` in the socket module to specify the Ethernet NIC for data sending.
 
 >In the example below, the parameter 192.168.1.100 in *sock.bind()* specifies the IP address of the Ethernet NIC.