详细解释:n. 昨天
ad. 昨天
相关词组:
the day before yesterday
yesterday week
英语解释：
名词 yesterday:
the day immediately before todaythe recent past副词 yesterday:
on the day preceding todayin the recent past; only a short time ago例句：
The sound of fire-alarm was heard by us yesterday evening.昨晚我们听见了火警声。