First underseas telephone cable , england to france 第一根海底电话电缆连接英国和法国。
2.
The possibility of using space inside mountains , underseas and developing multi - purpose public facilities to improve land utilization should be explored 探讨开发山洞、海底，以及透过发展多功能公共设施提高土地利用效益。
3.
Today , many , many telephone users regard international calls as routine , and overseas service , thanks largely to underseas cables and communications satellites , has undergone extraordinary improvement 今天，许许多多电话用户对国际长话已习以为常了，全球通讯服务的极大改善主要是由于海底电缆和通讯卫星。
