diff --git a/dubbo-metrics/dubbo-metrics-api/src/test/java/org/apache/dubbo/metrics/aggregate/TimeWindowAggregatorTest.java b/dubbo-metrics/dubbo-metrics-api/src/test/java/org/apache/dubbo/metrics/aggregate/TimeWindowAggregatorTest.java
index fc2d42c614..e0db96730f 100644
--- a/dubbo-metrics/dubbo-metrics-api/src/test/java/org/apache/dubbo/metrics/aggregate/TimeWindowAggregatorTest.java
+++ b/dubbo-metrics/dubbo-metrics-api/src/test/java/org/apache/dubbo/metrics/aggregate/TimeWindowAggregatorTest.java
@@ -27,7 +27,8 @@ public class TimeWindowAggregatorTest {
     public void testTimeWindowAggregator() {
         TimeWindowAggregator aggregator = new TimeWindowAggregator(5, 5);
 
-        // 第一个时间窗口，时间范围：0秒 - 5秒
+        //First time window, time range: 0 - 5 seconds
+
         aggregator.add(10);
         aggregator.add(20);
         aggregator.add(30);
@@ -39,7 +40,7 @@ public class TimeWindowAggregatorTest {
         Assertions.assertEquals(30, entry1.getMax());
         Assertions.assertEquals(10, entry1.getMin());
 
-        // 第二个时间窗口，时间范围：5秒 - 10秒
+        //Second time window, time range: 5 - 10 seconds
         try {
             TimeUnit.SECONDS.sleep(5);
         } catch (InterruptedException e) {
@@ -57,7 +58,9 @@ public class TimeWindowAggregatorTest {
         Assertions.assertEquals(35, entry2.getMax());
         Assertions.assertEquals(15, entry2.getMin());
 
-        // 第三个时间窗口，时间范围：10秒 - 15秒
+
+        //Third time window, time range: 10 - 15 seconds
+
         try {
             TimeUnit.SECONDS.sleep(5);
         } catch (InterruptedException e) {