大多数脊索瘤发生在颅底 、 颈椎及荐骨.Most chordomas are found at skull base, sacrum and cervical spine.目的: 细胞外微环境直接影响到体外人转移脊索瘤细胞的表现.Objective. The extracellular microenvironment directly affects metastatic chordoma cell phenotype in vitr...
I often bumped into him as he padded the corridors.他在走廊里轻轻地走过时，我常常碰见他。We left the road, and again bumped over the mountainside.我们驶离公路，再次在山腰上颠簸前行。The aircraft bumped along erratically without gathering anything like suffi...