名词
中文翻译：爷爷
同义词：
['grandpa', 'granddaddy例句：1. My grandfather is a retired teacher.（我的爷爷是一位退休的教师。）']
例句：
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1. My grandfather is a retired teacher.
我的爷爷是一位退休的教师。
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2.He often visits his grandfather in the countryside.
他经常去乡下看望他的祖父。
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3. The old man was very proud of his grandson's achievements.
这位老人对他的孙子的成就感到非常自豪。