Simple as these exercises are in theory, they demand very arduous practice.

To prepare here the god's abiding-place very arduous labor had been undertaken.

It was not very arduous as there were not exactly broad acres involved.

M. Walter has given me another position and the duties are very arduous.

It was not a very arduous office, but very pleasantly remunerative.

He was at this age very arduous and assiduous in the pursuit of knowledge.

The work for our own vessels was very arduous indeed.

But it's hideously risky, and probably very arduous and thankless.

Hiram Maxwell was not called upon to perform very arduous duties at Deacon Mason's.

The duties of the inspectors are very arduous, as the examinations are frequent and severe.

After four days of very arduous travel we reached Carlton at sunset on the 12th January.

The campaign had been very arduous on Lincoln.

But the law is very arduous, very exacting.

The duties of Miss Adams, as Secretary of the Ladies' Union Aid Society, were very arduous.

A very arduous task lies before him, but he is equal to it, I am certain.

The descent of the moraine from this point is very arduous, and is seldom attempted by ladies.