previously和beforehand还有in advance的区别及用法?
问题描述：
previously和beforehand还有in advance的区别及用法?
答
previously adv.previous的变形 previous ['pri:vjəs] adj.先的；前的；以前的 [口语]过早的；过急的；太早的 adv.在前,在先,在…以前 近义词:preceding ,antecedent 反义词:following 短语:previous to 在…以...