to meet the need―fill a need―minister to one's needs
according to the need
to urge (on one) the necessity of something―impress upon one the importance of something
to excessively praise someone or something
The amount will be decided upon according to the needs of the case―as the needs of the case may demand―(他動詞構文にすれば)―The needs of the case will determine the amount.
必要のない
without any necessity
必要次第に
according to the need―according to the urgency of the case
必要以上に