From cc17d3c7de90da63b4f52d5110d6fca96c8e9310 Mon Sep 17 00:00:00 2001
From: "@may7777" <642623256@qq.com>
Date: Thu, 9 Jun 2022 19:51:54 +0800
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---
 .../3.cluster-level-data-backup/7.manually-clear-backup-data.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/zh-CN/1.users-guide/10.high-data-availability/2.backup-and-recovery-management/3.cluster-level-data-backup/7.manually-clear-backup-data.md b/zh-CN/1.users-guide/10.high-data-availability/2.backup-and-recovery-management/3.cluster-level-data-backup/7.manually-clear-backup-data.md
index 5121af5b..1bd8c318 100644
--- a/zh-CN/1.users-guide/10.high-data-availability/2.backup-and-recovery-management/3.cluster-level-data-backup/7.manually-clear-backup-data.md
+++ b/zh-CN/1.users-guide/10.high-data-availability/2.backup-and-recovery-management/3.cluster-level-data-backup/7.manually-clear-backup-data.md
@@ -36,7 +36,7 @@ OceanBase 数据库支持清理指定的 `backup_set_id`、`backup_piece_id`、`
 
 3. 根据清理场景，选择合适的命令，清理备份数据。
 
-   * 清理指定 `backup_set_id` 的数据
+   * 清理指定 `backup_set_id`(BS_KEY字段) 的数据
 
      ```sql
      obclient> ALTER SYSTEM DELETE BACKUPSET backup_set_id;
-- 
Gitee