If there exist no regrets and even no ups and downs, will you never allow youself to say goodbye to the world one day?
Will you have no time to say goodbye if there is not any regrets and up and down?
如果生命没有遗憾,没有波澜,你会不会永远没有说再见的一天?
If life without regret, no waves, you will never say goodbye the day ?