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You are coming up to a school patrol crossing and both signs are held out. What must you do?
接近学校巡逻横道时，两侧的STOP停车牌都已伸出。你必须怎么做？
Both directions must stop while school patrol STOP signs are extended.
学校巡逻STOP牌伸出时，两个方向来车都须停车。
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Wait until the signs are withdrawn and it is safe, even if no child is currently crossing.
即使暂时没有孩子走在道路上，也要等STOP牌收回并确认安全后再行驶。