2 sentences

1. 回首往事，她说她不会改变任何事情。

   huí​shǒu wǎng​shì, tā shuō tā bù​huì gǎi​biàn rèn​hé shì​qing.

   Looking back, she said she would not change a thing.

   Source: CCMatrix

2. 回首我在这里的第一天，我可以说，我真的很紧张。

   huí​shǒu wǒ zài zhè​lǐ de dì​yī​tiān, wǒ kě​yǐ shuō, wǒ zhēn​de hěn jǐn​zhāng.

   Looking back at my first day here, I can say that I was really nervous.

   Source: CCMatrix