secondary
adj.
late 14c., from Latin secundarius "pertaining to the second class, inferior," from secundus (see second, adj.). Of colors, from 1831; of education, from 1809. Of sex characteristics from 1780. Opposed to primary or principal. Related: Secondarily.
〔李〕[second n. 第二;-ary →] a. being the second;next after the first in order or importance第二的;第二位的;次要的
〔蒋〕[sec,sequ=follow跟随,-ary形容词后缀,…的] 第二的,第二位的,第二次的