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"two days later they left"
"they put on two performances every day"
"there are 30,000 passengers per day"
平太阳日???平太阳连续两次过同一子午圈的时间间隔。???
英汉双解词典包含4367426条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。