英和和英

according to the need

when the need arises

in case of necessity

do the necessary

of something, to be needed

to be necessary

by necessity

as much as necessary

the degree of necessity

in any way necessary

according to the need―according to the urgency of the case

a necessary thing

absolutely necessary

not necessary

to meet a need―meet a want

to meet a need

if there happens to be need

at [in case of] need

depending on the necessity

position or line of employment

more than is needed

in great necessity

the degree of indispensability

immediate needs

to be pressed by necessity

It's necessary.

in an undesirable manner

in an unnecessary manner

more than necessary

have need of