在广阔的大西洋海岸住着一位老人。每天当潮水退去后他都会沿着海岸线走上很远。老人居所不远处住着另外一个人,他偶尔也会注视着这个老人消失在远处,然后又看着老人回来。这个邻居发现,老人边走还会时不时边弯下腰,从沙滩上拣起什么东西再抛到海里。一天,为了满足自己的好奇心,当老人又一次沿着海岸线走的时候,这个邻居跟 An elderly man lives on the vast Atlantic coast. Every day when the tide recedes, he goes a long way along the coastline. The old man lived another man not far from home, and he occasionally watched the old man disappear into the distance and then looked back at the old man. The neighbor found that the elderly walked from side to side and bent over from time to time, picking up something from the beach and throwing it into the sea. One day, in order to satisfy my own curiosity, when the old man walked along the coast again, the neighbor