The path to a sustainable energy future requires a balanced approach that considers economic, environmental, and social factors.
War is a tragedy, but sometimes necessary.
过去是一个跟随我们的影子,永远存在,永远影响着我们的步伐。
一个常见的经验是,一个晚上难以解决的问题在睡眠委员会工作后,在早上得到了解决。