i18n

resource/locales/en-US/translation.json

@@ -285,7 +285,8 @@
     "completely": "Delete completely instead of putting it into trash."
   },
   "modal_empty":{
-    "empty_the_trash": "Empty The Trash"
+    "empty_the_trash": "Empty The Trash",
+    "notice": "The pages deleted completely are unrecoverable."
   },
   "modal_duplicate": {
     "label": {

resource/locales/ja/translation.json

@@ -283,7 +283,8 @@
     "completely": "ゴミ箱を経由せず、完全に削除します"
   },
   "modal_empty":{
-    "empty_the_trash": "ゴミ箱を空にする"
+    "empty_the_trash": "ゴミ箱を空にする",
+    "notice": "完全削除したページは元に戻すことができません"
   },
   "modal_duplicate": {
     "label": {

src/client/js/components/EmptyTrashModal.jsx

@@ -23,7 +23,7 @@ const EmptyTrashModal = (props) => {
         { t('modal_empty.empty_the_trash')}
       </ModalHeader>
       <ModalBody>
-        完全削除したページは元に戻すことができません
+        { t('modal_empty.notice')}
       </ModalBody>
       <ModalFooter>
         {/* TODO add error message */}