And delivering spare parts becomes a major challenge.

必须物品会变成一项艰巨的挑战。

This would be a very hard job!

这会是一项极为艰巨的任务！

Really is a very very tough challenge.

真的是一个非常非常艰巨的挑战。

That is a lot of work – for the dog, that is.

对狗来说，这是一项艰巨的任务。

Being a sushi chef is tough work.

成为一名寿司厨师是一项艰巨的工作。

Digesting plant fibres is the hardest job.

消化植物纤维是一样艰巨的任务。

It's a huge responsibility on his teenage shoulders.

他稚幼的双肩扛起了无比艰巨的责任。

That presents a daunting problem for Mr. Sunak.

这给苏纳克带来了艰巨的难题。

Meeting that demand is a difficult task.

满足上述的用水需求是个艰巨的任务。

For Mr Biden, the challenge ahead within his party is formidable.

对拜登来说，临的挑战是艰巨的。

Helping them will be a monumental task.

为他们援助将是一项艰巨的任务。

One of the hardest tasks was pulling up tree stumps from the ground.

最艰巨的任务一就是从地上拉起树桩。

The coalition had the long and difficult task of putting those fires out.

联盟承担着扑灭大火的漫长而艰巨的任务。

But it's an incredibly daunting task.

但这是一项极其艰巨的任务。

The idiom to have your work cut out for you describes exactly this situation.

临着艰巨的任务这个习语正是描述了这种情况。

Innovating for the future, travel is a huge task and will take time.

创新未来的旅游是一项艰巨的任务，这需要时间。

An effort of this order will be a massive undertaking.

按照这个方向努力是一项艰巨的任务。

It's an enormously complex and difficult task.

而这是一项非常复杂且十分艰巨的任务。

It's a very difficult task or it's an arduous task.

这是一项非常困难的任务，或者是一项艰巨的任务。

Adapting his grandfather's work was daunting, says Mr Luperi.

卢佩里表示，改编他祖父的作品是个艰巨的任务。