shatter shed sheer shelter shield shortfall shrill shrink shroud shrub shuttle sibling sidestep siege signify simulate simultaneous sinew single entry singularly sinus sip skeleton skeptic skeptical sketch skull slam slice slick slight slip slope slot sloth sluggish slumpshatter [ 'ʃætə ] v.粉碎,砸碎;破坏 shed [ ʃed ] v.脱落(即蜕皮);流出,散发 sheer [ ʃiə ] adj.薄的;纯粹的 shelter [ 'ʃeltə ] n.躲避处; v.庇护,保护 shield [ ʃi:ld ] n.盾,保护物; v.保护;挡开 shortfall [ 'ʃɔ:tfɔ:l ] v.亏空;不足 shrill [ ʃril ] adj.(批评)尖锐的;刺耳的 shrink [ ʃriŋk ] v.(使)收缩;减小 shroud [ ʃraud ] n.裹尸布;覆盖物 shrub [ ʃrʌb ] n.灌木(丛) shuttle [ 'ʃʌtl ] n.航天飞机;穿梭运输工具 sibling [ 'sibliŋ ] n.兄弟或姊妹 sidestep [ 'saidstep ] v.横跨一步躲避;回避 siege [ si:dʒ ] n.包围,围攻 signify [ 'signifai ] v.表示,意味着 simulate [ 'simjuleit ] v.模仿,假装 simultaneous [ ,siml'teiniəs; ,saiml'teiniəs ] adj.同时的,同步的 sinew [ 'sinju: ] n.腱;肌肉 single entry [ siŋgl'entri ] adj.单式的;单式记录的 singularly [ 'siŋgjuləli ] adv.异常地;特别地 sinus [ 'sainəs ] n.穴;【解】窦(主要容纳静脉血的膨胀的通道或空腔) sip [ sip ] v.啜饮,呷 skeleton [ 'skelitn ] n.骨架,骨骼 skeptic [ 'skeptik ] n.怀疑者 skeptical [ 'skeptikl ] adj.怀疑的 sketch [ sketʃ ] n.草图,素描; v.画速写 skull [ skʌl ] n.头骨 slam [ slæm ] v.猛烈撞击;砰地关上 slice [ slais ] n.薄片,切片;部分 slick [ slik ] adj.光滑的;聪明的 slight [ slait ] adj.少量的;微不足道的 slip [ slip ] n.纸片;差错; v.滑行;下降 slope [ sləup ] n.斜坡;【数】斜率 slot [ slɔt ] n.狭缝;空位 sloth [ sləuθ ] n.树獭;懒惰 sluggish [ 'slʌgiʃ ] adj.缓慢的 slump [ slʌmp ] v./n.下降,暴跌