After a quarter of an hour, his faculties had regained their usual acuity, so he resumed studying the colony of red ants that he had discovered the day before.

Excellency, at this point in the course of events, I am afraid that my mind ceased to function with its usual acuity for detail and observation.

He chuckled quietly at the thought, and Pritchart smiled, following the direction of his mind with her usual uncanny acuity.

There is a good correspondence between the optikinetic and usual eye-chart acuities in adults.

All afternoon he had been seeing things in more than the usual detail, feeling every passing second go by with much more than the usual acuity.

Most importantly, the passive sensors abruptly regained most of their usual acuity.

With his usual acuity, Charn added up the pros and cons.

A delightful cast engages in nonstop flirtation and hair-splitting debate, rendered with Mr. Stillman's usual acuity and humor.

The sonata, Mr. Rosen writes with his usual acuity, "is not a masterpiece of deadly earnestness but an unparalleled explosion of energy."

With your usual acuity you understand the exact state of affairs!