plain sailing
事情進行得很順利
口語·描述順利進展
英文釋義
an easy and smooth experience or journey
例句
Once we fixed the engine, the rest of the trip was plain sailing.
典故來源
源自航海術語,plain指平坦無阻,sailing指航行,原指海面平靜,后比喻事情順利無礙。