劍橋詞典

(of a politician ) saying things in public that support the official ideas of his or her political party
（政界人士在公開場合講話與所在政黨的官方觀點）一致地，口徑一致地
The candidate is clearly on message with the party leadership . 這位候選人顯然跟黨領(lǐng)袖觀點一致。
比較
off message 返回 on message