digitally generated illustration showing how to assess surfing and swimming hazards in sea - 衝浪者 幅插畫檔、美工圖案、卡通及圖標
woman on surfboard surfing over pages of open book against blue background - 衝浪者 幅插畫檔、美工圖案、卡通及圖標學習, 讀書, 教育