strenuous

"But are you strong enough for the more strenuous kind of work?"

After three strenuous days they had gone over them all.

But we must give them time to rest after their strenuous day.

However, the process would be a long and strenuous one for everyone involved.

For a time, it was hard to do anything strenuous.

Was this work too strenuous for a boy his age?

It was a strenuous time, with little chance of thinking.

The University makes strenuous efforts to open up to the outside world.

The Country held the field of one's attention those strenuous days.

It had been a pretty full and strenuous day for eight years.

You can do light activities around the house but nothing strenuous for 1 to 2 weeks.

"I did not know that reading could be so strenuous."

It was a long walk, and soon a strenuous one.

The first part of our task was the most strenuous.

And the strenuous work did help to keep him warm.

He's going to go through a strenuous weight program this summer.

"But there are times when it can get real strenuous."

"Under the most strenuous of conditions, he never had to come out."

Strenuous efforts had to be made to help people find new jobs.

It may be several weeks before you can do strenuous exercise.

This is not a good time for getting involved in strenuous activity.

I'm afraid we have a strenuous day ahead of us.

They did not talk very much; the going was too strenuous for that.

Then exercise, not too strenuous at first, but keep building it.

An older woman in the group, though, was not up to such strenuous activity.