(adj.) previously used or owned by another; 'bought a secondhand (or used) car' .
(adj.) derived from what is primary or original; not firsthand; 'a secondhand report'; 'a secondhand account of a memory of something once read'; 'most of our knowledge is secondhand' .
(adv.) by indirect means; 'I heard about it only secondhand or thirdhand'; 'he prefers to buy secondhand'.
校对:莱利亚