diff --git a/aio/tools/translator/utils.spec.ts b/aio/tools/translator/utils.spec.ts
index 02ceafb58e..b17dde763c 100644
--- a/aio/tools/translator/utils.spec.ts
+++ b/aio/tools/translator/utils.spec.ts
@@ -101,6 +101,21 @@ def`);
 `);
   });
 
+  it('拆解单行br', function () {
+    const lines = normalizeLines(`
+    a
+    <br class="clear">
+    b
+`);
+    expect(lines).eql(`
+    a
+
+    <br class="clear">
+
+    b
+`);
+  });
+
   it('拆解 @a 标记', function () {
     const lines = normalizeLines(`
     a
diff --git a/aio/tools/translator/utils.ts b/aio/tools/translator/utils.ts
index c48f4fae6e..b0cba68a95 100644
--- a/aio/tools/translator/utils.ts
+++ b/aio/tools/translator/utils.ts
@@ -59,6 +59,8 @@ export function normalizeLines(text: string): string {
   text = text.replace(oneLineThTdTagPattern, '\n\n$1<$2$3>\n\n$1$4\n\n$1</$2>$5\n\n');
   const oneLineCommentPattern = /\n( *)(<!--.*-->)( *)\n/g;
   text = text.replace(oneLineCommentPattern, '\n\n$1$2$3\n\n');
+  const oneLineBrTagPattern = /\n( *)(<br class="clear">)( *)\n/g;
+  text = text.replace(oneLineBrTagPattern, '\n\n$1$2$3\n\n');
   const atTagCommentPattern = /\n( *)({@a.*})( *)\n/g;
   text = text.replace(atTagCommentPattern, '\n\n$1$2$3\n\n');
   const oneLineClosedTagPattern = /\n( *)<(hr|p)(\/?)>( *)\n/g;