This is a rather challenging task, but you made it!

这是一项很有挑战性的任务，但你成功了！

youdao

Many of them were rather difficult and challenging, just from different aspects.

很多特性都很困难很有挑战性，只是观察的角度不同。

youdao

Many of them were rather difficult and challenging, just from different aspects.

很多特性都很困难很有挑战性，只是观察的角度不同。

youdao