diff --git a/dtmcli/tcc.go b/dtmcli/tcc.go
index 9df1bd4..73d1172 100644
--- a/dtmcli/tcc.go
+++ b/dtmcli/tcc.go
@@ -24,7 +24,7 @@ type TccGlobalFunc func(tcc *Tcc) (*resty.Response, error)
 
 // TccGlobalTransaction begin a tcc global transaction
 // dtm dtm server address
-// gid 全局事务id
+// gid global transaction ID
 // tccFunc tcc事务函数，里面会定义全局事务的分支
 func TccGlobalTransaction(dtm string, gid string, tccFunc TccGlobalFunc) (rerr error) {
 	tcc := &Tcc{TransBase: *dtmimp.NewTransBase(gid, "tcc", dtm, "")}