The traffic was diabolical.

交通状况糟糕透了。

《牛津词典》

I think it's diabolical.

我认为这是恶魔。

youdao

Frederick: That was a diabolical day.

腓特烈：这真是可怕的一天。

youdao

Frederick: That was a diabolical day. Did you understand what was going on?

腓特烈：这真是可怕的一天。你清楚战时的情况吗？

youdao

Frederick: That was a diabolical day. Did you understand what was going on?

腓特烈：这真是可怕的一天。你清楚战时的情况吗？

youdao