The former is extremely arduous - the disciple must in a sense die.

If that makes living a morally decent life extremely arduous, well, then that is the way things are.

Reaching the explosion site was an extremely arduous task.

It was like an extremely arduous athletic effort that I couldn't choose not to do.

The campaign, if ever it materialized, would be extremely arduous while offering private soldiers little hope of plunder.

In the early days of the Glosters, life for the wives was extremely arduous.

The vines are cultivated on very steep slopes making the harvest extremely arduous.

Nevertheless, despite his natural gifts, he had anticipated it being an extremely arduous, time-consuming, and even boring process.

All three offices are extremely arduous and take up much of your free time.

The materials used in ebru are very special, making their production and utilization is extremely arduous.