amplifier

n.放大器，扩大器

amorously, amorousness, amorphous, amortization, -isation, amortize, amortise, amount, amount to, amour, amour propre, amp, amperage, ampere, ampersand, amphetamine, amphi-, amphibian, amphibious, amphitheatre (US -ter), ample, amplification, amplify, amplitude, amply, ampoule (US also ampule), amputate, amputation, amuck, amulet, amuse, amused, amusement, amusing, an, anachronism, anachronistic, anaconda, anaemia (US anemia), anaemic (US anemic), anaerobic, anaesthesia,