1. The ship left the island and headed for the mainland.
    轮船离开小岛向大陆开去。

2. The idea of linking England to the European mainland by tunneling beneath the channel goes back to 1802 when an engineer suggested it to Napoleon.
    用海峡隧道将英国和欧洲大陆连接起来的想法最早可以追溯到1802年，当时是一名工程师向拿破仑提出这一建议的。

3. No one from Taiwan could visit, write, or call anyone on the mainland.
    任何一个台湾人都不能访问、写信或打电话给中国大陆的人。

4. A radio message from the mainland had been received by the ship´s captain instructing him to give up the search.
    返航前，该船船长收到了大陆发来的电报，指示他们放弃这次搜寻。

5. Compare that with the mainland of China. Over the next decade, it plans to pour some $100 billion into telecommunications equipment.
    与俄国相比，在未来10年中，中国大陆计划对通信设备投入1,000亿美元。