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Update update-daemon-set.md

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content/zh/docs/tasks/manage-daemon/update-daemon-set.md

@@ -234,6 +234,17 @@ daemonset "fluentd-elasticsearch" successfully rolled out
 
 ### DaemonSet 滚动更新卡住
 
+<!--
+Sometimes, a DaemonSet rolling update may be stuck. Here are some possible
+causes:
+
+#### Some nodes run out of resources
+-->
+有时，DaemonSet 滚动更新可能卡住，以下是一些可能的原因：
+
+
+#### 一些节点可用资源耗尽
+
 <!--
 The rollout is stuck because new DaemonSet pods can't be scheduled on at least one
 node. This is possible when the node is
@@ -242,7 +253,7 @@ node. This is possible when the node is
 When this happens, find the nodes that don't have the DaemonSet pods scheduled on
 by comparing the output of `kubectl get nodes` and the output of:
 -->
-有时，DaemonSet 滚动更新可能会卡住，其 Pod 至少在某个节点上无法调度运行。
+DaemonSet 滚动更新可能会卡住，其 Pod 至少在某个节点上无法调度运行。
 当节点上[可用资源耗尽](/zh/docs/tasks/administer-cluster/out-of-resource/)时，
 这是可能的。