diff --git a/zh-cn/application-dev/reference/apis/js-apis-resourceschedule-backgroundTaskManager.md b/zh-cn/application-dev/reference/apis/js-apis-resourceschedule-backgroundTaskManager.md
index 7a8c6ea009d8893f0c6a6eb69ccc6090ac4916ec..1d8102af578705089968f6e4df3c5ae334af8f9d 100644
--- a/zh-cn/application-dev/reference/apis/js-apis-resourceschedule-backgroundTaskManager.md
+++ b/zh-cn/application-dev/reference/apis/js-apis-resourceschedule-backgroundTaskManager.md
@@ -124,7 +124,7 @@ getRemainingDelayTime(requestId: number, callback: AsyncCallback<number>):
 
 getRemainingDelayTime(requestId: number): Promise<number>
 
-获取本次短时任务的剩余时间。使用Promise异步回调。
+获取本次短时任务的剩余时间。使用promise异步回调。
 
 **系统能力:** SystemCapability.ResourceSchedule.BackgroundTaskManager.TransientTask