hugh arrived just five miuntes before the ceremony.before是介词还是副词
问题描述：
hugh arrived just five miuntes before the ceremony.before是介词还是副词
答
介词
参考：柯林斯高阶英汉词典
1.PREP（时间上）在…之前,早于If something happens before a particular date,time,or event,it happens earlier than that date,time,or event.→see usage note at:ago
Annie was born a few weeks before Christmas...
安妮出生在圣诞节前几周.