如果原文没有，不显示

resources/mustache/html/paragraph.html

@@ -1,5 +1,5 @@
 <div class="paragraph row [[layout]]">
-    <div class="col origin">[[origin]]</div>
+    [[#origin]]<div class="col origin">[[origin]]</div>[[/origin]]
     [[#translations]]
     <div class="col translation">[[content]]</div>
     [[/translations]]