Louis:
How time flies!why i always feel i haven't enough to work and study? 

时间过的真快!为什么我总觉得没有足够的时间来工作和学习
Yudy:
Yes, i aslo feel that i am always busy, no time for rest, i don't know how to make full use of time 

是呀,我也一样,我总觉得没有时间休息,我真的不知道改如何充分利用时间