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七到九

七到九

七到九

七到九

1

It is recommended trying to get between at least seven to nine hours of sleep per night .

建议每晚的睡眠时间在七到九个小时之间。

3

The National Institutes of Health says adults need seven hours to nine hours of sleep for good health .

国家健康部门称，成人需要七到九小时睡眠才可保持健康。

5

But as I have written , most people need seven to nine hours of sleep .

不过，就像我曾经写过的那样，大多数人天天需要睡七到九个小时。

7

I (was helping) my brother (with his) English from 7 to 9 yesterday morning .

昨天早上七到九点钟我正在帮助弟弟学英语。

8

Seven to nine years of work experience in the microwave design field ;

七到九年的微波设计领域工作经验；

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