求翻译：1948年12月27日22点30分，一架DC—3型大型民航班机，从旧金山机场起飞，途经百慕大海域上空，地面指挥塔曾听到机长惊诧的话声：“这是怎么回事？都在唱圣诞歌哪？”谁也没有想到这句话里所包涵的意味是什么。 　　28日凌晨4点30分，班机还向机场发过电讯——“接近机场，灯光可见，准备降落。”机场做好接受着陆的各项准备。 　　可是这架DC—3型班机始终没在机场降落。它在降落前就消失了，机组人员和全部乘客无一生还。 　　飞机一分钟前还与机场保持着正常联系，这次失踪仿佛是在一瞬间之内发生的。就像天空破了个洞，飞机一下掉进洞里，无声无息了。是什么意思？

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December 27, 1948 22:30 DC - a large commercial airliner-3, and took off from San Francisco Airport, via 100 Bermuda over the sea and the ground control tower had heard the words surprised voice: "What is this? All the singing Christmas songs? "Who would have thought this sentence meant to be covere

December 27, 1948, DC-3 large air service from San Francisco Airport via Bermuda over the sea, ground control tower had heard the captain's surprise: "this is what's going on? Sing Christmas songs? 　　"Nobody thought the inclusion of what is meant by the sentence. 28th, flights to the airport also ha