diff --git a/elegantbook-cn.tex b/elegantbook-cn.tex
index 66e653b..251c7d3 100644
--- a/elegantbook-cn.tex
+++ b/elegantbook-cn.tex
@@ -26,6 +26,16 @@
   Extension = .otf ,
   Scale = 1.0]
 
+
+\setsansfont{texgyreheros}[
+  UprightFont = *-regular ,
+  BoldFont = *-bold ,
+  ItalicFont = *-italic ,
+  BoldItalicFont = *-bolditalic ,
+  Extension = .otf ,
+  Scale = 1.0]
+
+
 \usepackage[]{newtxmath}
 % 本文档命令
 \usepackage{array}
@@ -59,6 +69,7 @@ Elegant\LaTeX{} 项目组致力于打造一系列美观、优雅、简便的模
   \item 邮件：\email{elegantlatex2e@gmail.com}
 \end{itemize}
 
+\textsf{hello world， 中文输入法，英文 English is not good for me}
 
 \section{模板安装与更新}