 "Interesting material," he commented, as if only the technical nature of the stuff had offered any problem to him.
He was familiar with the organic parts of the material, but the technical stuff confused him.
He had no problem with the technical nature of the stuff.
We retired before the normal retirement age.
The red background has since faded to a pink colour.
An older man does a handstand inside an indoor flower ship.
That person was not historically accurate.
A man is swimming in a pool.
The newer wet FGD systems had a negative effect on mass transfer when they first came out.