needful

n.

必要的事物；钱；

1. Air and water are needful for living things.
   空气和水是生物不可缺少的东西。
2. You should do what is needful as soon as possible.
   你应该尽快做需要做的事。

1. We're rather short of the needful now.
   我们现时很缺钱。

Needful Murder
Needful discriminations
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The semantic development of essential, crucial and needful: paths to deontic meaning
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Models of field-aligned currents needful to simulate the substorm variations of the electric field and other parameters observed by ...
The Historical Background of Entrepreneurial Development in Nigeria: Its Gains, Shortcomings and Needful