Should I surface, this one-man submarine?

我该从这一人潜水艇中浮出水面吗？

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Now, let's go even deeper. This submarine can descend down to 7,000 feet to discover creatures never seen by man.

现在，让我们下潜的更深一些。这艘潜水艇可下降到7,000英尺深以发现人类从未见过的生物。

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The vessel could also be a British two-man mini submarine - known as an X craft, a small boat or even a private yacht - one is known to have sunk in the area many years ago.

BBC: Experts to examine River Foyle, Derry, wreck