fix wording

packages/app/resource/locales/en_US/admin/admin.json

@@ -524,7 +524,7 @@
   },
   "audit_log_settings": {
     "activity_expiration_date": "Activity Expiration Date",
-    "activity_expiration_date_explain": "The activity is automatically deleted after the number of seconds set in the environment variable",
+    "activity_expiration_date_explain": "Created activities are automatically deleted after the number of seconds set in the environment variable from the creation time",
     "fixed_by_env_var": "This is fixed by the env var <code>{{key}}={{value}}</code>."
   }
 }

packages/app/resource/locales/ja_JP/admin/admin.json

@@ -523,7 +523,7 @@
   },
   "audit_log_settings": {
     "activity_expiration_date": "アクティビティの有効期限",
-    "activity_expiration_date_explain": "環境変数に設定した秒数後にアクティビティが自動的に削除されます",
+    "activity_expiration_date_explain": "作成されたアクティビティは、作成時間から環境変数に設定した秒数後に自動的に削除されます",
     "fixed_by_env_var": "環境変数により固定されています <code>{{key}}={{value}}</code>."
   }
 }

packages/app/resource/locales/zh_CN/admin/admin.json

@@ -533,7 +533,7 @@
   },
   "audit_log_settings": {
     "Activity Expiration Date": "活动到期日",
-    "activity_expiration_date_explain": "该活动在环境变量中设定的秒数之后被自动删除",
+    "activity_expiration_date_explain": "创建的活动会在环境变量中设置的从创建时间开始的秒数后自动删除",
     "fixed_by_env_var": "这是由env var 修复的 <code>{{key}}={{value}}</code>."
   }
 }