half day 的英语意思
half dayˈhalf day, half-day noun [countable] 
查看全部语言翻译 a day when you work or go to school either in the morning or the afternoon, but not all day只上午或下午上班（或上学）的半天: 
Friday is my half day off.星期五是我的半天假。
查看全部语言翻译 a day when you work or go to school either in the morning or the afternoon, but not all day只上午或下午上班（或上学）的半天: Friday is my half day off.星期五是我的半天假。