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pingcap · Jan 20, 2022 · 8d926f7 · 8d926f7
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diff --git a/pd-configuration-file.md b/pd-configuration-file.md
@@ -283,18 +283,18 @@ Configuration items related to scheduling
 + Controls whether to use Joint Consensus for replica scheduling. If this configuration is disabled, PD schedules one replica at a time.
 + Default value: `true`
 
-### `hot-regions-write-interval`
+### `hot-regions-write-interval` <span class="version-mark">New in v5.4.0</span>
 
-+ The time interval for PD to store hot Region information.
++ The time interval at which PD stores hot Region information.
 + Default value: `10m`
 
 > **Note:**
 > 
->Information about the hot Region is updated every three minutes. If the interval is set to less than three minutes, updates during the interval might be meaningless.
+> The information about hot Regions is updated every three minutes. If the interval is set to less than three minutes, updates during the interval might be meaningless.
 
-### `hot-regions-reserved-days`
+### `hot-regions-reserved-days` <span class="version-mark">New in v5.4.0</span>
 
-+ How many days the hot Region information is retained.
++ Specifies how many days the hot Region information is retained.
 + Default value: `7`
 
 ## `replication`

diff --git a/pd-control.md b/pd-control.md
@@ -376,7 +376,7 @@ Usage:
 >> hot read                                // Display hot spot for the read operation
 >> hot write                               // Display hot spot for the write operation
 >> hot store                               // Display hot spot for all the read and write operations
->> hot history 1629294000000 1631980800000 // Display history hot spot for the specified period (milliseconds)
+>> hot history 1629294000000 1631980800000 // Display history hot spot for the specified period (milliseconds). 1629294000000 is the start time and 1631980800000 is the end time.
 {
   "history_hot_region": [
     {
@@ -397,7 +397,7 @@ Usage:
     ...
   ]
 }
->> hot history 1629294000000 1631980800000 hot_region_type read region_id 1,2,3 store_id 1,2,3 peer_id 1,2,3 is_leader true is_learner true // Display history hot spot for the specified period with more conditions
+>> hot history 1629294000000 1631980800000 hot_region_type read region_id 1,2,3 store_id 1,2,3 peer_id 1,2,3 is_leader true is_learner true // Display history hotspot for the specified period with more conditions
 {
   "history_hot_region": [
     {