1. The machine was used in a cave near the seashore where----it is said----pirates used to hide gold.
    在靠近海边的一个据说过去海盗常在里面藏金子的岩洞里，这种机器被派上了用场。

2. He had a very pleasant vacation at the seashore.
    他在海滩度过愉快的假期。

3. One day he went to the seashore before daybreak.
    一天黎明前他来到海滨。

4. Let´s go for a walk along the seashore.
    让我们沿着海岸散散步。