Was heißt »geschäftstüchtig« auf Englisch?

Das Adjektiv »geschäftstüchtig« lässt sich wie folgt von Deutsch auf Englisch übersetzen:

Englische Beispielsätze

I need twenty efficient workers.
There must be a more efficient way to do this.
If you're so smart, do it yourself.
You'll keep quiet if you're smart.
There is no fundamental reason why machines should not be one day at least as smart as we are.
I wonder what it's like being smart.
That was smart of you.
I'm not that smart.
Dumb people think they're smart, and smart people think they're dumb.
Offshore units are more efficient because wind speeds tend to be faster and steadier than on land, and even small increases in speed yield large increases in energy production.
That's not too smart.
He's not only smart, but handsome as well.
That isn't too smart.
Do truly smart people brag about being smart?
Tom isn't smart enough to do something like that.
What a smart baby!
You're a smart person.
I'm too smart to be caught that easily.
I can already tell she is such a smart girl eager to learn.
The bicycle is the most elegant and efficient means of transport ever invented.