各位老师、各位同学:大家好!我们都知道,一年有365天,一天有24小时,一小时有60分钟,一分钟有60秒,时间对每个人都一样。时间还有一个特点,那就是一去不复返。即使是最伟大的科学家,使用最先进的科技手段,也不能挽回时间。因此,著名科学家富兰克林把时间比作生命:我国现代伟大的文学家鲁迅把浪费别人 Dear Teachers, Dear Students, We all know that 365 days a year, 24 hours a day, 60 minutes an hour, 60 seconds a minute, time is the same for everyone. Another characteristic of time is that it is gone forever. Even the greatest scientists, using state-of-the-art technology, can not save time. Therefore, Franklin, the famous scientist, compared time to life: a great writer of modern China, Lu Xun, hasted others