相关单词同義詞primarily, soon, initially, rather, threshold, conception, beginning, opening, title, elementary, premier, fundamental, basic, essential, 近義詞adv. foremost, primarily adj. basic, chief, earliest, primary反義詞adv. & adj.last臨近詞firstly, firmware, firsts, Firstov, firstaid, firstrun, first in, Firstman, first go, first set, first off, first row相似詞firm sth up, firmly, firmness, firmware, first aid, first aid kit, first among equals idiom, first and foremost idiom, 返回 first