diff --git a/protocol/dubbo/client.go b/protocol/dubbo/client.go
index 9f70d9377b54436f7b2046369a02b6e988ecdb34..f020ec93404008112258c94d63c74361db480f49 100644
--- a/protocol/dubbo/client.go
+++ b/protocol/dubbo/client.go
@@ -193,7 +193,7 @@ type Response struct {
 	atta  map[string]string
 }
 
-// nolint
+// NewResponse create a new Response.
 func NewResponse(reply interface{}, atta map[string]string) *Response {
 	return &Response{
 		reply: reply,
diff --git a/registry/nacos/listener.go b/registry/nacos/listener.go
index 669900736214178799294f1ba1f97841bb6b81a4..67c35d1abd08b32210fb124e502c247b224a4f0a 100644
--- a/registry/nacos/listener.go
+++ b/registry/nacos/listener.go
@@ -132,7 +132,7 @@ func (nl *nacosListener) Callback(services []model.SubscribeService, err error)
 		instance := generateInstance(services[i])
 		newInstanceMap[host] = instance
 		if old, ok := nl.instanceMap[host]; !ok {
-			// instance is not exist in cache, add it to cache
+			// instance does not exist in cache, add it to cache
 			addInstances = append(addInstances, instance)
 		} else {
 			// instance is not different from cache, update it to cache
@@ -144,7 +144,7 @@ func (nl *nacosListener) Callback(services []model.SubscribeService, err error)
 
 	for host, inst := range nl.instanceMap {
 		if _, ok := newInstanceMap[host]; !ok {
-			// cache instance is not exist in new instance list, remove it from cache
+			// cache instance does not exist in new instance list, remove it from cache
 			delInstances = append(delInstances, inst)
 		}
 	}