alveolar

adj, n (phonetics 语音) (of a) consonant made with the tongue touching the bony ridge behind the upper front teeth, eg / t/ or / d/ 齿龈音（的）（用舌抵住上齿後面的隆骨而发出的辅音, 如/ t/或/ d/. =>illus at throat 见throat之插图.

alternating current, alternation, alternative, alternatively, alternator, although, although (US also altho), altimeter, altitude, alto, altogether, altruism, altruist, altruistic, altruistically, alum, aluminium, aluminum, alumna, alumnus, always, am, amalgam, amalgamate, amalgamation, amanuensis, amass, amateur, amateurish, amateurishly, amateurism, amatory, amaze, amazement, amazing, amazingly, amazon, Amazonia, amazonian, ambassador,