回头看

• look back at
• review
• look back

例句

1. 一个赛跑运动员甚至回头看一眼后面的运动员还有多远，就可能失去很多优势。
   A runner can lose a lot of advantage by even glancing back to see how far behind the others are.
2. 回头看来路时，我们可以看见整个河谷展现在身后。
   Looking back the way we had come, we could see the whole valley spread out behind us.