America has no permanent friends or enemies, only interests.
The only thing necessary for the triumph of evil is for good men to do nothing.
膨脹的概念表明，宇宙在大爆炸后不久經(jīng)歷了一段極其快速的擴(kuò)張期。
音樂(lè)讓我學(xué)會(huì)了堅(jiān)持和永不放棄。