adulthood

n．成年(期)

adrenal gland, adrenalin, adrift, adroit, adroitly, adroitness, adsorb, adsorbent, adsorption, ADT, adulate, adulation, adulatory, adult, adulterate, adulterated, adulteration, adulterer, adulterous, adultery, adumbrate, adumbration, adv., advance, advance payment, advanced, advancement, advantage, advantageous, advantageously, advent, Adventist, adventitious, adventure, adventure playground, adventurer, adventurous, adventurously, adverb, adverbial,