alternator

n dynamo that produces an alternating current 交流发电机.

alpinist, already, alright, Alsatian, also, also-ran, altar, altar-piece, alter, alter ego, alterable, alteration, altercation, alternate, alternate angles, alternately, alternating current, alternation, alternative, alternatively, although, although (US also altho), altimeter, altitude, alto, altogether, altruism, altruist, altruistic, altruistically, alum, aluminium, aluminum, alumna, alumnus, alveolar, always, am, amalgam, amalgamate,