spine

n.脊柱

spiel, spigot, spike, spikiness, spiky, spill, spillage, spillway, spin, spin bowler (also spinner), spin-drier, spin-dry, spin-off, spina bifida, spinach, spinal, spinal column, spinal cord, spindle, spindly, spine-chiller, spine-chilling, spineless, spinelessly, spinelessness, spinet, spinnaker, spinner, spinney, spinning, spinster, spinsterhood, spiny, spiral, spirally, spire, spirit, spirit-lamp, spirit-level, spirited,