It moves extra fast to catch up.
它会转动飞快，让人无法赶上。
Eating too fast is one reason people pack on extra pounds.
吃饭太快也是发胖的重要原因之一。
The automatic test technology is fast and easy to operate, but needs some extra circuits.
自动检测技术操作简单，且测试速度快，但需要增加辅助检测电路。
Need to cool something extra-fast? New research suggests that lasers might do the trick.
需要急速冷却东西吗？新的研究表明激光也许能解决这一难题。
Need to cool something extra-fast? New research suggests that lasers might do the trick.
需要急速冷却东西吗？新的研究表明激光也许能解决这一难题。
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