- 释义：
- num. 七，七个（人或物）
- 例句：
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It is requested that he should leave before seven o'clock.
请求他7点前离开.
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The temperature tonight will fall to seven degrees Celsius.
今晚气温将下降到七摄氐度.
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The shop is open seven days a week excluding Christmas Day.
本商店每周七天营业,圣诞节除外.
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