aorta

n. 主动脉

anus, anvil, anxiety, anxious, anxiously, any, any longer, any more, any more (US anymore), any number of, any time, anybody, anyhow, anymore, anyone, anyplace, anything, anything but, anyway, anywhere, apace, apart, apart from, apartheid, apartment, apartment block, apathetic, apathetically, apathy, ape, ape-man, aperient, aperitif, aperture, apex, aphasia, aphasic, aphid, aphides, aphis,