【经】 impediment
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
【法】 duty of performance; satisfaction
block up; hamper; hinder; impede; obstacle; counterwork; forestall; set back
【医】 interfere; interference
【经】 holdup