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ramp up

[phrasal verb]
ramp up or ramp up (something) or ramp (something) up
: to increase or to cause (something) to increase in speed, size, etc.(使)加速,增加
⇒ Main Entry: 2 ramp

Word History

First Known Use

1980, in the meaning defined above

Time Traveler
The first known use of ramp-up was in 1980

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