sunspot

n 1 (astronomy 天) any of the dark patches that sometimes appear on the sun's surface, causing electrical disturbances and interfering with radio communications （太阳）黑子; 日斑. 2 (infml 口) place that has a sunny climate (eg for holidays) 多阳光的地方（如度假胜地）.

sundown, sundowner, sundries, sundry, sunfish, sunflower, sung, sunk, sunken, sunless, sunlight, sunlit, sunnily, sunniness, sunny, sunny-side up, sunrise, sunset, sunshade, sunshine, sunstroke, sunup, sup, super, super-, super-duper, superduper, super-ego, superego, superabundance, superabundant, superachiasmatic, superannuate, superannuated, superannuation, superb, superbly, supercharge, supercharger, supercilious, superciliously, superciliousness,