In that case, add the action of clicking the arrow button.
在这种情况下，添加单击箭头按钮的操作。
In case of fire, please follow the direction of arrow and take the nearest staircase.
如发生火警，可按箭头指示方向，选择最近的楼梯逃生。
In case of fire, please follow the direction of arrow and take the nearest staircase.
如发生火警，可按箭头指示方向，选择最近的楼梯逃生。
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