英和和英

absolutely essential

to be necessary

vitally important

vitally important

crucially important

being indispensable

according to the need

by necessity

of vital importance

do the necessary

an indispensable implement

a necessary thing

in great necessity

an indispensable duty

the degree of indispensability

of something, to be needed

something that is indispensable

the degree of necessity

have need of

of paramount importance

to take advantage of one's need

an omission of a necessary matter

a necessary or essential thing

to provide the necessities

being of crucial importance

being of vital importance

the matter which must be addressed

to a vital degree

position or line of employment

a thing which must be done