diff --git a/aio/content/dict/checker.spec.ts b/aio/content/dict/checker.spec.ts
index 88f1d938c3..969d3e1e2d 100644
--- a/aio/content/dict/checker.spec.ts
+++ b/aio/content/dict/checker.spec.ts
@@ -3,17 +3,31 @@ import { DictEntry } from './dict-entry';
 import { gatherFromMarkdownFiles, isTranslation } from './extractor';
 
 describe('auto check translations', function () {
-  const entries = gatherFromMarkdownFiles(__dirname + '/../');
+  const entries = gatherFromMarkdownFiles(__dirname + '/../')
+    .filter(isNotCheatSheet)
+    .filter(isNotMarketingDocs)
+    .filter(isNotCnPages);
+
   it('should not have <code-example> in translation', function () {
     const codeExamples = entries.filter(entry => entry.translation.indexOf('<code-example') !== -1);
     expect(codeExamples).eql([]);
   });
+
   it('english should not be translations', function () {
     const lines = entries.filter(entry => isTranslation(entry.original))
-      .filter(isNotImg)
-      .filter(isNotCheatSheet)
-      .filter(isNotMarketingDocs)
-      .filter(isNotCnPages);
+      .filter(isNotImg);
+    expect(lines).eql([]);
+  });
+
+  it('should have same head level', function () {
+    const lines = entries
+      .filter(entry => isHead(entry.original) && isHead(entry.translation))
+      .filter(entry => {
+        const originalLevel = entry.original.replace(/^(#+).*$/, '$1').length;
+        const translationLevel = entry.translation.replace(/^(#+).*$/, '$1').length;
+        return originalLevel !== translationLevel;
+      });
+
     expect(lines).eql([]);
   });
 });
@@ -33,3 +47,7 @@ function isNotMarketingDocs(entry: DictEntry): boolean {
 function isNotCnPages(entry: DictEntry): boolean {
   return !/cn\/.*?.md$/.test(entry.sourceFile);
 }
+
+function isHead(line: string): boolean {
+  return /^#/.test(line);
+}
diff --git a/aio/content/dict/dict-3.json b/aio/content/dict/dict-3.json
index b0bdfe9756..2dd0d32b79 100644
--- a/aio/content/dict/dict-3.json
+++ b/aio/content/dict/dict-3.json
@@ -11571,7 +11571,7 @@
   },
   {
     "original": "## What's the difference between a _bootstrap_ component and an _entry component_?",
-    "translation": "### *引导组件*和*入口组件*有什么不同？",
+    "translation": "## *引导组件*和*入口组件*有什么不同？",
     "sourceFile": "/Users/twer/private/GDE/angular-cn/aio/content/guide/ngmodule-faq.md"
   },
   {
@@ -12226,7 +12226,7 @@
   },
   {
     "original": "## The *PipeTransform* interface",
-    "translation": "### *PipeTransform*接口",
+    "translation": "## *PipeTransform*接口",
     "sourceFile": "/Users/twer/private/GDE/angular-cn/aio/content/guide/pipes.md"
   },
   {
@@ -15776,7 +15776,7 @@
   },
   {
     "original": "### _Activated Route_ in action",
-    "translation": "#### _Activated Route_ 实战",
+    "translation": "### _Activated Route_ 实战",
     "sourceFile": "/Users/twer/private/GDE/angular-cn/aio/content/guide/router.md"
   },
   {
diff --git a/aio/content/guide/ngmodule-faq.md b/aio/content/guide/ngmodule-faq.md
index 681e157d1c..c1e65e0869 100644
--- a/aio/content/guide/ngmodule-faq.md
+++ b/aio/content/guide/ngmodule-faq.md
@@ -870,7 +870,7 @@ For more information, see [Entry Components](guide/entry-components).
 
 ## What's the difference between a _bootstrap_ component and an _entry component_?
 
-### *引导组件*和*入口组件*有什么不同？
+## *引导组件*和*入口组件*有什么不同？
 
 A bootstrapped component _is_ an [entry component](guide/ngmodule-faq#q-entry-component-defined)
 that Angular loads into the DOM during the bootstrap process (application launch).
diff --git a/aio/content/guide/pipes.md b/aio/content/guide/pipes.md
index cd5355b798..6336394787 100644
--- a/aio/content/guide/pipes.md
+++ b/aio/content/guide/pipes.md
@@ -276,7 +276,7 @@ Your pipe has one such parameter: the `exponent`.
 
 ## The *PipeTransform* interface
 
-### *PipeTransform*接口
+## *PipeTransform*接口
 
 The `transform` method is essential to a pipe.
 The `PipeTransform` *interface* defines that method and guides both tooling and the compiler.
diff --git a/aio/content/guide/router.md b/aio/content/guide/router.md
index 8156b9d556..74f0923ede 100644
--- a/aio/content/guide/router.md
+++ b/aio/content/guide/router.md
@@ -2621,7 +2621,7 @@ the `HeroDetailComponent` via the `ActivatedRoute` service.
 
 ### _Activated Route_ in action
 
-#### _Activated Route_ 实战
+### _Activated Route_ 实战
 
 Import the `Router`, `ActivatedRoute`, and `ParamMap` tokens from the router package.