【建】 para-hydroxybenzoic acid
right; answer; reply; at; check; compare; couple; mutual; opposite; versus; vs
face to face
【计】 P
【化】 dyad
【医】 Adv.; contra-; corps; ob-; p-; pair; par; para-
【经】 vs
a; an; each; one; per; same; single; whole; wholehearted
【医】 mon-; mono-; uni-
【建】 hydroxybenzoic acid