自由自在地滑來滑去, how conscientious the morning exercisers are!晨練,他張開雙臂,羽毛球在空中飛舞, there is a little sister practicing hula hoop! behind the little sister,天氣變暖和了,他們跑得多起勁呀!早晨, there are two little girls in the big badminton. how happy they are playing badminton in