- keen
- 锐利: sharp; keen; pointed
- 的: 4次方是 The fourth power of 2 i ...
- 敏捷: quick; nimble; sharp; agile
- 敏捷的: adroit; agile; deft; expeditious; feat; fiery-footed; fleet; handy; keen; lickety-split; lightly; lissome; natty; nimble; of dexterity; of swiftness; prompt; quick; rapid; ready; sharp; shrewd; smart; speedy; spry; unhesitating; vivid; yare; zippy
- 锐利的: aciform; acuminate; acuminous; biting; cultrated; fine; gimlety; keen; knife-edged; mordacious; nippy; piercing; pointed; sharp; shrewd; shrill; trenchant - vague
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