n.形成；构成，结构；形成物；编队，队形 变形： 复数：formations 双语释义：n.(名词)[U]形成,构成 accumulation; organizing and developing of sth[C]形成物 thing that is formed[U]编队,排列 rank; arrangement英英释义： formation[ fɔ:'meiʃən ]n.an arrangement of people or things acting as a unit"a defensive fo