diff --git a/.github/workflows/issue-translator.yml b/.github/workflows/issue-translator.yml
new file mode 100644
index 00000000..f8b0c1d6
--- /dev/null
+++ b/.github/workflows/issue-translator.yml
@@ -0,0 +1,18 @@
+name: 'issue-translator'
+on: 
+  issue_comment: 
+    types: [created]
+  issues: 
+    types: [opened]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: tomsun28/issues-translate-action@v2.6
+        with:
+          IS_MODIFY_TITLE: true
+          # not require, default false, . Decide whether to modify the issue title
+          # if true, the robot account @Issues-translate-bot must have modification permissions, invite @Issues-translate-bot to your project or use your custom bot.
+          CUSTOM_BOT_NOTE: Bot detected the issue body's language is not English, translate it automatically. 👯👭🏻🧑‍🤝‍🧑👫🧑🏿‍🤝‍🧑🏻👩🏾‍🤝‍👨🏿👬🏿
+          # not require. Customize the translation robot prefix message.
diff --git a/core/mr/mapreduce_test.go b/core/mr/mapreduce_test.go
index 252aed51..6ae2060d 100644
--- a/core/mr/mapreduce_test.go
+++ b/core/mr/mapreduce_test.go
@@ -266,6 +266,19 @@ func TestMapReduce(t *testing.T) {
 	}
 }
 
+func TestMapReducePanicBothMapperAndReducer(t *testing.T) {
+	defer goleak.VerifyNone(t)
+
+	_, _ = MapReduce(func(source chan<- interface{}) {
+		source <- 0
+		source <- 1
+	}, func(item interface{}, writer Writer, cancel func(error)) {
+		panic("foo")
+	}, func(pipe <-chan interface{}, writer Writer, cancel func(error)) {
+		panic("bar")
+	})
+}
+
 func TestMapReduceWithReduerWriteMoreThanOnce(t *testing.T) {
 	defer goleak.VerifyNone(t)