Balancing the needs of diners, cooks and couriers is fiendishly complicated.

平衡食客、厨师和送餐员的需求极其复杂。

For something so apparently simple, it can be fiendishly complex.

一些看似简单的东西可能实则极为复杂。

Encouraging people to drink fewer fizzy drinks, however, is fiendishly difficult.

然而，鼓励人们尽量少喝碳酸饮料却出奇的难。

But the prime minister's ineptitude has rendered the fiendishly hard Brexit project almost impossible.

但首相的无能，使得极其艰难的英国脱欧计划几乎不可能实现。

As the 55 years since his death have shown, achieving those through policy is fiendishly difficult.

在他去世后的55年，正如事实所表明的那样，通过政策实现这些目标难于登天。

But plug boards were fiendishly complicated to program.

但是插板的编程极其复杂。

And even reading the brain gets fiendishly tricky.

甚至阅读大脑也变得非常棘手。

I am not brutally selfish, blindly unjust, or fiendishly ungrateful.

我不是极端自私、盲目不公正或极度忘恩负义。

Finally, can you handle the course's fiendishly difficult terrain?

最后，你能克服超困难的地形吗？

He had a feeling the grown-ups weren't going to come up with anything fiendishly clever.

他有一种感觉，大人们不会想出什么非常聪明的东西来。