音標(biāo)發(fā)音英式音標(biāo) [?r.?θ?met.?.k?l pr??ɡre?.?n]美式音標(biāo) [er.?θ?met?.?.k?l pr??ɡre?.?n]英式發(fā)音 美式發(fā)音 基本解釋算術(shù)級(jí)數(shù)，等差級(jí)數(shù)。同根派生 arithmetical/arithmetic progression相關(guān)詞英英字典劍橋英英字典 a sequence (= an ordered series of numbers) in which the numbers get bigger or smaller by the same amount, such as 3, 6, 9..., or 9, 6, 3arithmetical/arithmetic progression劍橋字典arithmetical/arithmetic progression柯林斯字典