15世纪末,哥伦布从美洲大陆返回时,他担心自己不能活着回到西班牙,便把一张美洲地图和一封信装在一个瓶子里,然后投入了大海。这个瓶子一直在大海中漂流。 At the end of the 15th century, when Columbus returned from the mainland of the Americas, he was worried that he would not be able to return to Spain alive. He put a map of America and a letter in a bottle before putting it into the sea. This bottle has been drifting in the sea.