catch sight of

Catching sight of the dog, he broke into a run.

他一看见那只狗, 就赶紧跑。

Finally he caught sight of the young man's light overcoat in the distance.

他总算在远处看见了那个年轻穿的浅色外套。

His transposition considerations and the changing the point of view make Su-shi catch sight of the goodliness of the life.

移位思考，变换角看问题，使他看到生活中美好的一面。