1、Success is good study， day day happy.成功就是好好学习，天天快乐。

2、"Make the night night， and the day day， and you will have a pleasant time of it"白天当白天，夜晚当夜晚，生活过得好，愉快而且多欢乐.

3、I muddle along from day to day.我是混一天算一天。