diff --git a/contents/en/basics/release-note/5-5-0.md b/contents/en/basics/release-note/5-5-0.md
index 0c0357a..42af8b3 100644
--- a/contents/en/basics/release-note/5-5-0.md
+++ b/contents/en/basics/release-note/5-5-0.md
@@ -73,7 +73,7 @@
 <script>
 const ssrClient = window['echarts-ssr-client'];
 
-let isSeriesShown = {
+const isSeriesShown = {
   a: true,
   b: true
 };
@@ -83,7 +83,7 @@
   container.innerHTML = svgStr;
 
   // Use lightweight runtime to give the chart interactive capabilities
-  ssrClient.hydrate(main, {
+  ssrClient.hydrate(container, {
     on: {
       click: (params) => {
         if (params.ssrType === 'legend') {
diff --git a/contents/en/how-to/cross-platform/server.md b/contents/en/how-to/cross-platform/server.md
index 7c20377..92b4bc9 100644
--- a/contents/en/how-to/cross-platform/server.md
+++ b/contents/en/how-to/cross-platform/server.md
@@ -192,7 +192,7 @@
 <script>
 const ssrClient = window['echarts-ssr-client'];
 
-let isSeriesShown = {
+const isSeriesShown = {
   a: true,
   b: true
 };
@@ -202,7 +202,7 @@
   container.innerHTML = svgStr;
 
   // Use the lightweight runtime to give the chart interactive capabilities
-  ssrClient.hydrate(main, {
+  ssrClient.hydrate(container, {
     on: {
       click: (params) => {
         if (params.ssrType === 'legend') {
diff --git a/contents/zh/basics/release-note/5-5-0.md b/contents/zh/basics/release-note/5-5-0.md
index 2f603f0..1456678 100644
--- a/contents/zh/basics/release-note/5-5-0.md
+++ b/contents/zh/basics/release-note/5-5-0.md
@@ -73,7 +73,7 @@
 <script>
 const ssrClient = window['echarts-ssr-client'];
 
-let isSeriesShown = {
+const isSeriesShown = {
   a: true,
   b: true
 };
@@ -83,7 +83,7 @@
   container.innerHTML = svgStr;
 
   // 使用轻量运行时赋予图表交互能力
-  ssrClient.hydrate(main, {
+  ssrClient.hydrate(container, {
     on: {
       click: (params) => {
         if (params.ssrType === 'legend') {
diff --git a/contents/zh/how-to/cross-platform/server.md b/contents/zh/how-to/cross-platform/server.md
index cc271b4..16be843 100644
--- a/contents/zh/how-to/cross-platform/server.md
+++ b/contents/zh/how-to/cross-platform/server.md
@@ -192,7 +192,7 @@
 <script>
 const ssrClient = window['echarts-ssr-client'];
 
-let isSeriesShown = {
+const isSeriesShown = {
   a: true,
   b: true
 };
@@ -202,7 +202,7 @@
   container.innerHTML = svgStr;
 
   // 使用轻量运行时赋予图表交互能力
-  ssrClient.hydrate(main, {
+  ssrClient.hydrate(container, {
     on: {
       click: (params) => {
         if (params.ssrType === 'legend') {