there might seem little room left for one-upmanship beyond fitting yet more gold-plated taps and a mini-submarine berth.
不是“预留一个小舱室，为了以后安装更多镀金水龙头和微型潜艇泊位，好胜人一筹”
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The challenge is doing it under 150 atmospheres of pressure with the tools and lights of a robot mini-submarine that gets its power and instructions by way of a cable.
Anders Behring Breivik shot dead at least 86 people at an island camp site near Oslo, though at least five others remain missing, and a mini-submarine is searching for them.