例句：
Once upon a time, there was a beautiful princess who lived in a castle. (从前，有一位美丽的公主住在城堡里。)
I've only been to Paris once in my life. (我一生中只去过巴黎一次。)
Once you start the task, you must finish it. (一旦开始任务，就必须完成它。)
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最佳回答 2024-07-26