A day 的意思：一天例句：1.An apple a day keeps the doctor away 一天一个苹果医生将会远离。2.Everyone should brush at least twice a day. 每个人每天至少要刷两次牙。3.He spends an hour a day on his business. 他每天花一个小时在他的生意。4.You should take a day off tomorrow. 你明天应该体息一天。5.Termites eat 24 hours a day. 白蚁一天24小时都在吃。
