supersonic
[形容词]
having a speed greater than that of sound

超音速的, 超过音速的
Ex: The military supersonic missiles for swift and precise strikes against targets .
agile
[形容词]
able to move quickly and easily

敏捷的, 灵活的
Ex: agile robot maneuvered smoothly through the obstacle course .
prompt
[形容词]
(of a person) ready and willing to act quickly

迅速的, 及时的
Ex: prompt volunteer arrived early to help set up for the event .
accelerated
[形容词]
moving or progressing at a faster rate than usual

加速的, 加快的
Ex: accelerated speed of the car made him feel exhilarated as he drove down the highway .

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