slag

n.矿渣，炉渣，熔渣

skunk, sky, sky-blue, sky-diver, sky-diving, sky-high, sky-rocket, sky-writing, skylark, skylight, skyline, skyrocket, skyscraper, skywards, slab, slack, slacken, slacker, slackly, slackness, slag-heap, slain, slake, slalom, slam, slander, slanderer, slanderous, slanderously, slang, slanginess, slangy, slant, slanted, slantingly, slantwise, slap, slap (also ,slap-bang), slap-happy, slap-up, slapdash,