aquatic

adj. 水生的,水中的,水上的

apricot, April, April Fool, April Fool's Day, apron, apropos, apropos of, apse, apstream, apt, aptitude, aptitude test, aptly, aptness, Aqualung, aquamarine, aquaplane, Aquarian, aquarium, Aquarius, aquatint, aqueduct, aqueous, aquifer, aquiline, Arab, arabesque, Arabia, Arabian, Arabic, arabic numerals (also arabic figures), Arabist, arable, arachnid, arbiter, arbitrarily, arbitrariness, arbitrary, arbitrate, arbitration,