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You see this school warning and variable speed-limit sign combination on an open road. What should you do?
在開放道路上看到圖示學校警告與可變限速標誌組合時，應怎麼做？
Watch for schoolchildren and slow as needed. When the variable limit is activated and displays a number, obey it.
注意學校及兒童，準備減速；電子限速啓用並顯示數字時，必須遵守顯示的最高速度。
閱讀相關知識
Activation can include school-related events outside usual school hours. Follow the limit until its end sign; even when inactive, choose a safe speed for children and conditions.
學校限速可在上下學及與學校有關的其他活動期間啓用。不能只按鐘點、星期或是否正在上課判斷；限速生效時應一直遵守到學校限速結束標誌。即使電子牌未啓用，仍鬚根據兒童及道路情況選擇安全速度。