英和和英

an average

about average

the mean value

to take the average―strike an average―find the mean

lower than average

the average marks

It does not come up to par.

to keep the equilibrium―keep the equipoise

to keep two forces in equilibrium―keep two weights in equipoise

more than average fatness

They average a little over twelve―twelve and a fraction.

below normal or average

the state of being that is average

exceeding the normal or average

achieve or reach on average

average stature

the deviation from the mean

It is just up to par.

the mean temperature

the nth root of the product of n numbers, called the geometric mean

It averages a little under 50.

the average score

life expectancy

strike an average

take an average

the above-average profit that one is able to gain

the balance of power

average life span

an extreme deviation from the mean

the action of taking the average of a numerical value