stipulate state or put forward as a necessary condition
strands smth twisted together into a rope， line of development
stray wander， lose one's way
roll call calling of names
rope thick strong cord made by twisting
savant person of great learning
savor taste， flavour smth
sawdust tiny bits of wood
scabbard sheath for the blade
scent smell （esp pleasant）
scurvy diseased state of the blood caused by eating too much salt
seal piece of wax， lead， etc stamped on the document
sedulous persevering
sequence succession， connected line of
serration having a toothed edge
servile like a slave， lacking independence
shaft arrow or spear， smth long and narrow
shallow little depth； not earnest
shard piece of broken earthenware
sheath cover for the blade of a weapon or a tool
shove push
shrill sparp， piercing
shun keep away from； avoid
shunt send from one track to another； lay aside； evade discussion
sidestep step to one side
skiff small boat
skit short piece of humorous writing
slate king of blue-grey stone； propose； critisize
sluggard lazy， slow-moving person
sluggish inactive， slow-moving
soar rise， fly high
sober self-controlled
sobriety quality or condition of being sober
soggy heavy with water
solvent of the power of forming a solution
somatic of the body
soot black powder in smoke
sophisticated complex， subtle， refined
sordid wretched， comfortless， contemptible
spear weapon with a metal point on a long shaft
specious seeming right or true but not really so
squalid dirty， mean
squander spend wastefully
steeply rising or falling sharply
stickler person who insists on importance of smth
stigma mark of shame or disgrace
sting smth sharp