英和和英

It's necessary.

have need of

position or line of employment

want to have

something that is indispensable

It is necessary.

do the necessary

have

to be necessary

according to the need

something you have to do

of something, to be needed

just as it should be

the matter which must be addressed

Is required

be due

a necessary thing

by necessity

that should be done

the degree of indispensability

to meet a need

meet a need

I should have had it.

You were supposed to have it.

a thing which must be done

of something, to be proper

a key point

something that is to be done by someone

something that has to be done

bound to happen