This is a laborious task but a necessary one.

In the monastery he did most of the laborious tasks, being physically stronger.

We began our laborious task without once reflecting on the many dangers that might attend it.

For incredibly large numbers, this is a laborious task.

It will be a laborious task; I must work quickly.

Other tasks less laborious, perhaps more delightful, lay before him.

Then he would have the laborious task of committing it to paper.

Then came the long and laborious task of resealing the access shaft.

That is an especially laborious task since the building has not been used as a residence since 1935.

Jamie began the laborious task of getting into his.