那天早晨，3名炸弹人分别在三列不同的伦敦地下铁列车上引爆了自己，紧接着一小时后，在塔维斯托克站的一座双层巴士上发生了第四次爆炸性袭击事件。
That morning, three bombers detonated themselves in three of London'sUnderground trains, before a fourth explosion occurred on adouble-decker bus in Tavistock Square an hour later.
客厅采用双层挑高的倾斜天花板，设有一座燃气壁炉，墙壁和楼梯间采用未经处理的红木镶板。
The living room has a pitched two-story ceiling and a gas fireplace, with untreated redwood paneling on the walls and in the stairwell.
另一座轻松建造，摆脱地面的束缚而悬于双层高的花园上方。
The other was made lightheartedly, emancipated from the ground, in the air, is flying at a double height over the garden.
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