自行车车辙纵横交错；光滑的斜坡显然被用来玩滑板或者“死亡之幕”的游戏，而且至少造成了几起“膝盖骨摔伤”和单车特技事故。
Tracks crisscrossed it; smooth areas of slope indicated regular use by skateboards and Wall of Death, or at least Wall of Seriously Grazed Knee, cyclists.
缩短伤后手术时间，采用标准大骨瓣减压，是降低重型颅脑损伤小脑幕裂孔疝的病死率的关键。
It is also essential to have a prompt operation after injury and employ standard mega-bone flap craniotomy decompression for reducing fatality rate.
缩短伤后手术时间，采用标准大骨瓣减压，是降低重型颅脑损伤小脑幕裂孔疝的病死率的关键。
It is also essential to have a prompt operation after injury and employ standard mega-bone flap craniotomy decompression for reducing fatality rate.
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