diff --git a/mathjax/lang/zh-cn/messages.po b/mathjax/lang/zh-cn/messages.po
new file mode 100644
index 000000000..4e464fbb4
--- /dev/null
+++ b/mathjax/lang/zh-cn/messages.po
@@ -0,0 +1,53 @@
+# ADDON mathjax
+# Copyright (C)
+# This file is distributed under the same license as the Friendica mathjax addon package.
+# 
+# 
+# Translators:
+# 朱陈锬 <tangenters@outlook.com>, 2018
+msgid ""
+msgstr ""
+"Project-Id-Version: friendica\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-02-27 05:01-0500\n"
+"PO-Revision-Date: 2018-03-01 09:50+0000\n"
+"Last-Translator: 朱陈锬 <tangenters@outlook.com>\n"
+"Language-Team: Chinese (China) (http://www.transifex.com/Friendica/friendica/language/zh_CN/)\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+"Language: zh_CN\n"
+"Plural-Forms: nplurals=1; plural=0;\n"
+
+#: mathjax.php:36
+msgid "Settings"
+msgstr "设置"
+
+#: mathjax.php:37
+msgid ""
+"The MathJax addon renders mathematical formulae written using the LaTeX "
+"syntax surrounded by the usual $$ or an eqnarray block in the postings of "
+"your wall,network tab and private mail."
+msgstr ""
+
+#: mathjax.php:38
+msgid "Use the MathJax renderer"
+msgstr "使用 MathJax 渲染"
+
+#: mathjax.php:42
+msgid "Submit"
+msgstr "提交"
+
+#: mathjax.php:66
+msgid "Settings updated."
+msgstr "设置已更新"
+
+#: mathjax.php:75
+msgid "MathJax Base URL"
+msgstr ""
+
+#: mathjax.php:75
+msgid ""
+"The URL for the javascript file that should be included to use MathJax. Can "
+"be either the MathJax CDN or another installation of MathJax."
+msgstr ""
diff --git a/mathjax/lang/zh-cn/strings.php b/mathjax/lang/zh-cn/strings.php
index 24ac6e990..05103a5db 100644
--- a/mathjax/lang/zh-cn/strings.php
+++ b/mathjax/lang/zh-cn/strings.php
@@ -1,9 +1,14 @@
-<?php
-
-$a->strings["Settings"] = "配置";
-$a->strings["The MathJax addon renders mathematical formulae written using the LaTeX syntax surrounded by the usual $$ or an eqnarray block in the postings of your wall,network tab and private mail."] = "MathJax插件表示用LaTeX句法的数学公式，围绕$";
-$a->strings["Use the MathJax renderer"] = "用MathJax表示器";
-$a->strings["Submit"] = "提交";
-$a->strings["Settings updated."] = "设置跟新了";
-$a->strings["MathJax Base URL"] = "MathJax基础URL";
-$a->strings["The URL for the javascript file that should be included to use MathJax. Can be either the MathJax CDN or another installation of MathJax."] = "URL JavaScript文件应该包括为用MathJax。可以MathJax CDN或者别的MathJax安装。";
+<?php
+
+if(! function_exists("string_plural_select_zh_cn")) {
+function string_plural_select_zh_cn($n){
+	return 0;;
+}}
+;
+$a->strings["Settings"] = "设置";
+$a->strings["The MathJax addon renders mathematical formulae written using the LaTeX syntax surrounded by the usual $$ or an eqnarray block in the postings of your wall,network tab and private mail."] = "";
+$a->strings["Use the MathJax renderer"] = "使用 MathJax 渲染";
+$a->strings["Submit"] = "提交";
+$a->strings["Settings updated."] = "设置已更新";
+$a->strings["MathJax Base URL"] = "";
+$a->strings["The URL for the javascript file that should be included to use MathJax. Can be either the MathJax CDN or another installation of MathJax."] = "";