他觉得讽刺的是，帮助他的人正是多年前欺骗过他的那个人。

He found it ___ironic that the person who helped him was the one who had deceived him years ago.

讽刺的是，在要求保持安静的图书馆里，最大的噪音来自图书管理员。

It was ___ironic that the loudest noise in the library, where silence was required, came from the librarian.

在预报了多日晴天之后，天气预报员自己遇上了一场倾盆大雨——真是讽刺的转折。

After days of predicting sunshine, the weather forecaster got caught in a downpour — an ___ironic turn of events.