S字开头的单词或词组
spaceshipswapSovietspasimultaneousspeak toskinsubject sb to sthstaticsimilespursadismSACself-reliantscutSouth Americastudiospare no effortslimysubsidyself-centeredsolespeculateshallstart-upspaghettisadnesssilostrategicsuccessivespeakershrewdsmoothyscramblesetting upsure enoughslide intoshoresave upsuicidesofasentence pattern