A Cordelier received a double alms for telling the plain truth.

一个科德利埃俱乐部成员因为说了实话，得到了双倍的救济。

This is the plain truth.

这是明摆着的事实。

And by all accounts, this is the plain truth.

在坊间，这早就是不争的事实。

The plain truth is that he doesn't like you.

说白了， 他不喜欢你。朴素的；简单的；

The plain truth is that she will never return.

事实很明显，她永远不会回来了。