after的对应词

The year before last he won a gold medal, and the year before that he won a silver.
他前年得了一枚金牌，大前年得了一枚银牌。
She's lived there since before the war.
她从战前起就一直住在那里。
He arrived before me.
他比我先到。
She became a lawyer as her father had before her.
像她父亲先前一样，她成了一名律师。
Leave your keys at reception before departure.
离开前请把钥匙留在服务台。
Something ought to have been done before now.
先前就该采取措施了。