英和和英

required activity

the act of requiring

do the necessary

require exertion

urgently needed

to be necessary

task to be done as needed

to complete one's business

to be pressed by necessity

to meet a need―meet a want

to meet a need

do the needful

a crying need

an urgent demand―a crying want―an emergency―the exigencies of the moment

necessary business

urgent necessity

to work under the pressure of necessity

on-the-job requirements

need the spur

effective demand

pressing business

needed encouragement

to meet the need―fill a need―minister to one's needs

a necessary thing

to suit the exigency

immediate needs

have need of

to cause necessity―necessitate

be urgent

I will work if necessary―if need be.