Lesson 117 Time Flies
第117课　光阴似箭
Time is precious. Nobody can afford to waste time.
时间是很宝贵的，谁都浪费不起时间。
Once time has gone by, it will never return.
时间一旦消逝，就永不再回来。
You can never turn the clock back.
你永远也无法让时光倒流。
Time passes very quickly. In fact, people say time flies.
时间过得很快，事实上，人们说光阴似箭。
Time and tide wait for no man. We should, therefore, make the best use of our time.
岁月不待人，因此，我们应该好好善用时间。