今天对于华尔街又是艰难的一天。

It's been a tough day for Wall Street.

youdao

只能说，这是艰难的一天。

Can say, this is a tough day.

youdao

在PacBio对于我们所有人来说，这是一个异常艰难的一天。

For all of us here at PacBio, this is an extraordinarily difficult day.

youdao

That has to count as the toughest day, not only in my career, but also in the history of that particular presidency.

那可以算得上是最艰难的一天，不仅在我的职业生涯里，在总统任期的历史中,也是最艰难的一天吧。

普林斯顿公开课 - 国际座谈会课程节选

What was the most difficult day for you as Chief of Staff and the most joyous day, and the toughest assignment President Bush gave you?

作为白宫办公厅主任,最艰难的一天是哪天,最高兴的又是哪天，还有布什总统派给你的,最难的任务是什么？

普林斯顿公开课 - 国际座谈会课程节选

11 The most difficult day was September 11th.

最艰难的一天就是。

普林斯顿公开课 - 国际座谈会课程节选