口说无凭。
Verbal statements are no guarantee.
《新英汉大辞典》
口说无凭，那么就让我们来看看事实吧！
The mouth says, then let us to look at the facts!
youdao
口说无凭，眼见为实。
The mouth says, seeing is believing.
应用推荐
模块上移
模块下移
不移动