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帮忙翻译个长难句,在线等Thefirsttimethatthequestion"whatisatthebottomoftheoceans?"hadtobeansweredwithanycommercialconsequencewaswhenthelayingofatelegraphcablefromEuropetoAmericawaspropsed.

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帮忙翻译个长难句,在线等
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 propsed.
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答案和解析
“海底有什么?”这个问题第一次得到有商业意义的回答是在从欧洲通往美国的海底电缆铺设的时候.