名词
中文翻译：灰色的雁同义词
同义词：
['gray goose', 'gray swan']
例句：
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1. The gray goose is a symbol of the season's arrival.
灰鹅是季节到来的象征。
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2. The gray swan is a rare bird that can be found only in certain parts of the world.
灰天鹅是一种稀有的鸟类，仅在某些世界的某些地方发现。
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3. The gray goose has become a popular tourist attraction in many cities.
灰鹅已成为许多城市的热门旅游景点。