London used to be Britain's largest port.
倫敦過(guò)去是英國(guó)最大的港口城市。
India used to be a dependency of Britain.
印度過(guò)去是英國(guó)的附屬地。
He used to be able to cycle50 miles in a day, but he's past it now, I'm afraid.
他過(guò)去一天能騎50英里，不過(guò)現(xiàn)在恐怕不行了。
Jones used to be a thief, but now he's seen the error of his ways and is trying to rebuild his life.
瓊斯過(guò)去是小偷, 但是現(xiàn)已知過(guò)能改重新做人.
There used to be public executions.
處決囚犯過(guò)去都是公開(kāi)執(zhí)行的。