yīnsù

element / factor / CL:[[個|个<gè>]]

yuánsù

element / element of a set / chemical element

sùshí

vegetables / vegetarian food

yàosù

essential factor / key constituent

pǔsù

plain and simple / unadorned / simple living / not frivolous

sùzhì

inner quality / basic essence

wéishēngsù

vitamin

sù

raw silk / white / plain, unadorned / vegetarian (food) / essence / nature / element / constituent / usually / always / ever

kàngshēngsù

antibiotic

dúsù

poison