习语 “seeing is believing” 的意思是 “需要亲眼看到一件事情，而不只是道听途说，才能接受或相信这件事情是真的”，也就是 “耳听为虚，眼见为实”。

例句
My boyfriend says he’ll turn up at the cinema on time, but seeing is believing!
我男朋友说他会按时到电影院，但眼见为凭！

My boss promised to bring sweets to our next meeting, but seeing is believing!
我上司承诺下次开会时带甜食来，但眼见为实！

My son got out of bed before lunchtime and made his own breakfast – seeing really is believing!
我儿子在午饭时间前起床了，还自己做了早饭吃，真是不看不相信！