Translated using Weblate (#3784)

Co-authored-by: ButterflyOfFire <ButterflyOfFire@protonmail.com>
Co-authored-by: J. Lavoie <j.lavoie@net-c.ca>
Co-authored-by: Kevin Papst <kevin@kevinpapst.de>
Co-authored-by: Milo Ivir <mail@milotype.de>
Co-authored-by: Oğuz Ersen <oguz@ersen.moe>
Co-authored-by: Wellington Terumi Uemura <wellingtonuemura@gmail.com>
Co-authored-by: Yaron Shahrabani <sh.yaron@gmail.com>
Co-authored-by: gallegonovato <fran-carro@hotmail.es>
Co-authored-by: yangyangdaji <1504305527@qq.com>

translations/system-configuration.zh_CN.xlf

@@ -298,6 +298,10 @@
         <source>allowed_replacer</source>
         <target state="translated">允许的替代品：%replacer%</target>
       </trans-unit>
+      <trans-unit id="1cAQPNS" resname="customer.allow_duplicate_number">
+        <source>customer.allow_duplicate_number</source>
+        <target state="translated">允许重复的帐号</target>
+      </trans-unit>
     </body>
   </file>
 </xliff>