alpenstock

n long stick with an iron tip, used in climbing mountains （带铁头的长的）登山杖.

almanac (also almanack), almighty, almond, almond paste, almond-eyed, almoner, almost, alms, almshouse, aloe, aloft, alone, along, along with, alongside, aloof, aloofness, aloud, alp, alpaca, alpha, alpha particle, alpha radiation, alpha ray, alphabet, alphabetic, alphabetical, alphabetically, alphabetize, alpine, alpinist, already, alright, Alsatian, also, also-ran, altar, altar-piece, alter, alter ego,