1、At sight of the rainbow, the children were more glad than the parents.
看見彩虹, 孩子們比大人更高興。

2、His stomach heaved at sight of the mess.
他一見到食物就嘔吐。

3、The boy ran away at sight of his teacher.
那男孩一見到他的老師就逃之夭夭。

at sight of翻譯