Englishfor English speakers
shrewd
—
adjective
(= astute)
marked by practical hardheaded intelligence
a smart businessman
an astute tenant always reads the small print in a lease
he was too shrewd to go along with them on a road that could lead only to their overthrow
—
adjective
(= calculating)
used of persons
the most calculating and selfish men in the community
formula
Noun
—
A formula is a way to do something or solve a problem that does not change much.
There is no formula for making profit, yet many business people think there is.
The formula for converting from kilograms to pounds is mathx\ \mathrm{kg} \times 2.2/math
—
Infant formula is a powder that you mix with water to make a drink for babies.