'This is really a pretty efficient mode of travel,' Jessica admitted.

This didn't strike John as the most efficient mode of takeoff, but it certainly was easy on the passengers.

Next comes public transport, as the most efficient and practical mode of mass/long distance transportation.

Studies have since shown that slavery was indeed a highly efficient mode of production for particular crops like sugar and cotton.

While this took me aback at first, it turned out to be a very efficient mode of interaction and a nice touch.

Combined with vast distances, air travel is by far the most efficient mode of transportation.

Lippmann advocates scientific experimentation to find the most efficient mode of business.

Clearly, more efficient modes of transportation must be found, and scientists and engineers are at work on them now.

One of the tools at his command was an efficient mode of integrating information.

"Very efficient mode of transport," Martok said, not changing his expression.