sunday.monday.tuesday.wednesday is the middle day.thursday.friday.saturday.we are happy we can say.

问题描述:

sunday.monday.tuesday.wednesday is the middle day.thursday.friday.saturday.we are happy we can say.

星期天,星期一,星期二,星期三,是中间平凡的日子,星期四,星期五,星期六我们能说我们很快乐.