深海潛水器在馬里亞納海溝的徹底黑暗中緩緩下潛，唯一的光源是外部探照燈

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深海潛水器在馬里亞納海溝的完全黑暗中緩緩下降，外部探照燈是這片絕對黑暗中唯一的光源。攝影機位於潛水器的前端，朝著

A deep sea submersible descends slowly through the complete darkness of the Mariana Trench, its exterior floodlights the only illumination in an absolute black void. The camera sits at the nose of the vessel looking