diff --git a/scripts/build_pdf.sh b/scripts/build_pdf.sh
index 661d59340d5ff4eb53a6622a6f39a1b855d6d789..f9295f6c9d5d2426aac46b5fe5fa364e36cd4995 100755
--- a/scripts/build_pdf.sh
+++ b/scripts/build_pdf.sh
@@ -21,15 +21,23 @@ templateV2File=templates/eisvogel.tex
 MergeTocToolScript=scripts/merge_by_toc.py
 DockRootDir="product"
 dist="dist/pdf"
+# 构建全部文档
 build_all=yes
+# 构建 latex 文档
 build_tex=no
+# 只 构建 mtk 文档
 only_build_mtk=no
+# 只 构建 sca 文档
 only_build_sca=no
+# 只 构建 mvd 文档
 only_build_mvd=no
+# 只 构建 mogdb 文档
 only_build_mogdb=no
+# 只 构建 mogha～ 文档
 only_build_mogha=no
 
 
+
 function h1() {
     printf "\n${underline}${bold}${blue}[build] %s${reset}\n" "$@"
 }
@@ -66,6 +74,7 @@ function note() {
     printf "\n${underline}${bold}${blue}Note:${reset} ${blue}[build] %s${reset}\n" "$@"
 }
 
+# 生成PDF
 function _generate_pdf() {
     language=${1}
     DocFile=${2}
@@ -132,8 +141,10 @@ function _generate_pdf() {
     fi
 }
 
+# mogdb 多语言定义
 mogdbDocsLanguages=("zh" "en")
 
+# mogdb 版本定义
 mogdbDocsVersions=("v2.1")
 
 # 不能使用下划线