主動脈

aorta / principal artery

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

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)

(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

artery

arteries and veins / vein (on a leaf, insect wing etc)

see 脈脈|脉脉[mo4 mo4]