名词
中文翻译：Unknown
同义词：
['paper', 'stationery', 'writing paper']
例句：
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1. She carefully wrote her name on the letter paper.
她小心地在信纸上写下了她的名字。
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2. The old man used to write letters by hand on his letter paper.
那位老人过去总是用手写在信纸上写信。
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3. He carefully folded the letter paper and placed it in an envelope.
他小心翼翼地折叠信纸并将其放入信封中。