diff --git a/language/zh_TW/admin.lang.php b/language/zh_TW/admin.lang.php
index 8b5b50263..5fa588d9a 100644
--- a/language/zh_TW/admin.lang.php
+++ b/language/zh_TW/admin.lang.php
@@ -1103,4 +1103,16 @@ $lang['Display album date period'] = '在每本相簿旁顯示日期區間，例
 $lang['Display category date'] = '顯示分類日期';
 $lang['Display form'] = '顯示表單';
 $lang['Displays a banner to install or open the official Piwigo app'] = '顯示引導安裝與開啟 Piwigo 官方 app 的橫幅廣告';
-$lang['Dissociate user from this group'] = '斷開使用者與此群組的關聯';
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+$lang['Dissociate user from this group'] = '斷開使用者與此群組的關聯';
+$lang['You have %s1 orphan : %s2'] = '您有 %s1 個未使用的標籤：%s2';
+$lang['and %s others'] = '以及其他 %s 個標籤';
+$lang['checksum'] = '檢查碼';
+$lang['checksums to add'] = '個待加入的檢查碼';
+$lang['delete album and all %d photos, even the %d associated to other albums'] = '刪除相簿以及所有 %d 張照片（其中 %d 與其他相簿有關聯）';
+$lang['delete album and the %d orphan photos'] = '刪除相簿以及 %d 張沒有關聯至任何相簿的照片';
+$lang['delete only album, not photos'] = '僅刪除相簿，保留照片';
+$lang['in administration'] = '在管理介面中';
+$lang['in gallery'] = '在畫廊介面中';
+$lang['no photo'] = '沒有照片';
+$lang['or'] = '或是';
+$lang['orphans to delete'] = '要刪除的無所屬照片';
\ No newline at end of file