无须

We shall offer you advice, but you are under no obligation to follow it.

We know each other pretty well, so I think we can dispense with the formalities.

It is not necessary for me to have an operation.

Your CD player had a design fault, so you don't have to pay for the repair.

There is no need to worry.

need no rest; not need to rest

not need to go into great detail

have no need of foreign help/aid

need not take into consideration

need not take any trouble; need not trouble oneself with

need not say more

need not make a fuss (about sth)