A wreck on shore is a beacon at sea wreck, beacon, shore, sea

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A wreck on shore is a beacon at sea.前车之覆，后车之鉴。
　　Wreck, a ship lost at sea or (partly) destroyed on rocks.
　　失事的船，触礁的船，(失事船只的)残骸。
　　Shore，(海，湖等大水域的)岸，滨
　　Beacon, a tall object or a light on or near the shore, acting as a guide or warning to sailors (海岸高处的)指示灯，灯标，灯塔。
　　直译这句话就是，海岸上一只失事的船只就象海上的一个灯塔，告诉人们要提高警惕。用中国人的一句古话来说就是前车之覆，后车之鉴。