副词
中文翻译:一次
同义词:
['once', 'once only']
例句:
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1. Once upon a time, there was a beautiful princess in the kingdom.
从前,有一个美丽的公主在王国里。
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2. He once won a gold medal at the Olympics.
他曾经在奥运会上赢得一枚金牌。
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3. Once upon a time, she lived in a small village far away from the city.
从前,她住在一个远离城市的小村庄里。