- a sharp pen
- 锐利: sharp; keen; pointed
- 的: 4次方是 The fourth power of 2 i ...
- 笔锋: the tip of a writing brush v ...
- 锐利的: aciform; acuminate; acuminous; biting; cultrated; fine; gimlety; keen; knife-edged; mordacious; nippy; piercing; pointed; sharp; shrewd; shrill; trenchant - vague
- 锋利的, 锐利的: knife-edged
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