one way to find out的英文解释:This is the only way to discover the truth. 翻译成中文就是:知道真相的唯一方法.
A:I wonder what this letter says.
我想知道信里写了什么.
B:There's only one way to find out - open it!
方法只有一个--打开看看
If you want to know if she'll go out with you. There's only one way to find out - you have to ask her.
如果你想知道她是否愿意跟你出去,只有一个办法可以知道--邀请她.