He saw brightly-colored birds, flowers and leaves.
他看见色彩鲜艳的鸟、花朵和树叶。
However, I recommend that you take the JR Narita Express (a train leaves every 30-60 minutes from the airport), to avoid the complexity of changing trains.
但是,我建議你乘 JR 的成田特急(每三十分鐘至一個小時就有一班列車從機場開出),不用轉車這麼麻煩。