sp变sb的浊化现象单词答:s后面清辅音都要变成浊辅音 spider,spring,spa,spade,space,spare,span,spat,speed,sped,spend,spent,spit,spite,spill,spoil,spoilt,spoon,spool,spider,spin,split,spore,spoke,spoken,speek,speech,spur,spouse,spun,spurge,spot,sport,spurn,sponge,sponsor,spray,spy,spotter,spry,spice,spicy,spirit,...