名词
中文翻译：笔尾
同义词：
['pen tip', 'pen end', 'pen knob例句：1. The pentail was sharp enough to write on paper.（这支笔尖足够锋利，能在纸上写字。）']
例句：
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1. The pentail was sharp enough to write on paper.
这支笔尖足够锋利，能在纸上写字。
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2. She carefully trimmed the pentail with scissors.
她用剪刀小心翼翼地修剪了笔尖。
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3.The pentail is the part of the pen that touches the paper.
笔尖是笔与纸接触的部分。