第一次从商业价值的角度来回答海底有什么这个问题，是在有人建议铺设一条从欧洲到美洲的电报电缆的时候。
The first time that the question 'what is at the bottom of the oceans' had to be answered with any commercial consequence was when the laying of telegraph cable from Europe to America was proposed.
“海底有什么？”这个问题第一次必须加以回答是在考虑铺设从欧洲到美国的电报电缆的时候，而且具有商业意义。
The first time that the question "What is at the bottom of the oceans?" had to be answered with any commercial consequence was when the laying of a telegraph cable from Europe to America was proposed.
1866年的今天，跨大西洋海底电缆成功完工，从此令跨大西洋间的电报通讯首次成为可能。
1866 - the Atlantic Cable is successfully completed, allowing transatlantic telegraph communication for the first time.
通过海底电缆拍电报到美国。
通过海底电缆拍电报到美国。
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