in advance的用法

in advance beforehand事先；预先*Please pay five yuan in advance。请预付人民币5元。*She received one month's salary in advance。她预支了一个月的工 资。*He registered for the examination well in advance．他早就报名应试 了。*The factory fulfilled the state production plan one month in advance．这个工厂提前一个月完成国家生 产计划。