By early 1959 the economy was already showing signs of strain.

But in recent times, signs of strain have often been visible.

After two hours they made me stop; said I was showing signs of strain.

He also got the singers to keep up with him without much sign of strain.

Her mother was beginning to show signs of strain again.

And their relationship seems to be showing signs of strain.

Still quite attractive though he showed all the signs of strain.

They had been doing this for three million years, and were showing certain signs of strain.

The most obvious sign of strain is in his hair.

For the first time in long hours, he permitted himself to show signs of strain.