necessitate

Definitions

necessity + -ate ('to make') = to make something unavoidable. Formal and impersonal: a cause (the flood, the growth) does the forcing, not a person. Often takes a noun or -ing object: 'necessitated an evacuation,' 'necessitated hiring.'

Common Collocations

• 1.necessitate changes需要改变
• 2.necessitate action需要采取行动
• 3.necessitate a review需要重新审查

Example Sentences

• 1.

  The flood necessitated the evacuation of the whole town.

• 2.

  Rapid growth necessitated hiring more staff.

• 3.

  The new law necessitated changes to our contracts.

Easily Confused

necessitate vs require — both mean 'make necessary,' but 'require' can have a person as subject ('the boss requires a report'), while 'necessitate' almost always has an impersonal cause ('the delay necessitated a refund'). Use necessitate in formal/written contexts.