A strenuous trip to the United States in 1964 led to Meitner having a heart attack, from which she spent several months recovering.

She was planning a strenuous trip, all the way to California and back, you told me that yourself.

This avoids the heat of the summer but obviously makes for a more strenuous trip.

He was also the first, to produce studies for his oil paintings on strenuous outdoor trips.

In addition to her strenuous trips, she tries to spend a few long weekends in places like the Caribbean, London and Paris.

All will be strenuous trips, not something you would much enjoy, Myra.

And he has scheduled several strenuous trips in the next few months.

We opted for a more strenuous trip, packed out sunhats and set off.

Immediately after the game, they departed for Indianapolis, where they open a particularly strenuous trip.

"It's going to be quite a strenuous trip, and it'll help him to have you there."