needed

v.

需要，必须( need的过去式和过去分词 )；（表示应该或不得不做）有必要；

as needed根据需要；按需

1. A mug of hot chocolate was just what she needed.
   一马克杯的热巧克力正是她所需要的。
2. He weeded out the books he no longer needed.
   他把不再需要的书清理出去了。

WHAT'S NEEDED IN R&D
No adjustments are needed for multiple comparisons.
How much training is needed in multiple-antenna wireless links?
White House says $100-per-flight fee is needed
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Using objective physical activity measures with youth: How many days of monitoring are needed?
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Is a review of standard procedures for cryopreservation needed?: Safe and effective cryopreservation—should sperm banks and fertili...
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