It was the most efficient way of taking your life.

A lot of things used to take me so much work because I didn't have the knowledge to do it the most efficient way.

This isn't a particularly efficient way of making phone calls.

It was an efficient way of getting everyone to pay attention.

Large class size is the most efficient way to learn.

What then is the most efficient way of doing this?

That would be the most efficient way of going about things.

That could indeed be an efficient way of using our working time.

The only efficient way of doing this is through common action.

What we need is an efficient way to store the energy.