spillway

n passage for surplus water from a reservoir, river, etc 溢洪道; 泄洪道.

spheroid, sphincter, sphinx, spice, spiced, spiciness, spick, spicy, spider, spider plant, spider-man, spidery, spied, spiel, spigot, spike, spikiness, spiky, spill, spillage, spin, spin bowler (also spinner), spin-drier, spin-dry, spin-off, spina bifida, spinach, spinal, spinal column, spinal cord, spindle, spindly, spine, spine-chiller, spine-chilling, spineless, spinelessly, spinelessness, spinet, spinnaker,