主動

to take the initiative / to do sth of one's own accord / spontaneous / active / opposite: passive 被動|被动[bei4 dong4] / drive (of gears and shafts etc)

owner / master / host / individual or party concerned / God / Lord / main / to indicate or signify / trump card (in card games)

(of sth) to move / to set in movement / to displace / to touch / to make use of / to stir (emotions) / to alter / abbr. for 動詞|动词[dong4 ci2], verb

aorta / principal artery

initiative (as in "seize the initiative") / advantageous position that allows one to call the shots

active immunity