diff --git a/core/node_strings.go b/core/node_strings.go
index 1e412d0..0955810 100644
--- a/core/node_strings.go
+++ b/core/node_strings.go
@@ -218,6 +218,7 @@ func (sender *Strings) HideCQEmoji(text string) map[string]interface{} {
 	}
 }
 
+// 构建CQ码
 func (sender *Strings) BuildCQCode(cqType string, params map[string]interface{}) string {
 	var sb strings.Builder
 	sb.WriteString("[CQ:" + cqType)
diff --git a/core/node_temp.go b/core/node_temp.go
index 4996a70..0247749 100644
--- a/core/node_temp.go
+++ b/core/node_temp.go
@@ -40,6 +40,8 @@ func (s *PersistentKeyValueStore) Set(key string, value interface{}, dur int) er
 		ExpiredAt: expiredAt,
 	}
 	go func() {
+		s.RLock()
+		defer s.RUnlock()
 		defer func() {
 			recover()
 		}()