ADJ
第三的;第三位的;第三阶段的
Tertiary means third in order, third in importance, or at a third stage of development.
例句
He must have come to know those philosophers through secondary or tertiary sources.
他一定是通过第二手或第三手资料了解那些哲学家的。
...the complementary tertiary colours, russet and olive green.
互补的三次色——赤褐色和橄榄绿