Day and night were divided into the same number of parts, so that except at the equinoxes, days and night hours were unequal; and then of course the length of these hours varied with the seasons.
白天和黑夜被分为均等数量的部分，所以除去昼夜平分点，白天和黑夜时间是不等的；当然，这些时长也因季节变化而变化。
And he couldn't get any information during the night hours.
而且他无法得到夜里的信息。
They ignored the distinction between daylight hours and night hours but kept the total of 24.
他们忽略了昼夜小时的差异，但保留了全部的24个小时。
If you're flying during what would be night hours at your destination, try to get some sleep on the plane.
如果你的飞行时间是目的地的夜晚，在飞机上应该睡会觉。
To fit a few more destinations into your trip, check if any of your must-see museums have late-night hours.
在你的旅行中多看几个景点，检查确认是否博物馆的开馆时间延长至夜里。
These either power the vehicle's electric motors directly, or charge its lithium-ion batteries, which sustain the aircraft during the night hours.
这些电池既可以直接为电动马达供电，也可以给飞机的锂电池充电——以使飞机在夜间保持飞行。
Shortly afterwards, restaurant chain Skylark group closed 310 of its restaurants during night hours, leaving just 100 that still stay open around the clock.
不久之后，餐厅连锁Skylark集团的310家餐厅也在夜间关门，只剩下100家仍在24小时营业。
But the main factor is the growing shortage of casual staff - a big issue after four years of robust economic growth - that makes it hard to operate profitably during late-night hours.
但主要的因素是兼职员工日益短缺(这是经济稳健增长4年后的一大问题)，这让企业难以在深夜时段盈利。
According to Redelmeier, screenwriters are more apt to lead unhealthy lifestyles, meaning they smoke more, exercise less, and work a lot of late-night hours, which translates into not enough sleep.
雷德·梅尔说，剧本编剧们通常生活方式并不健康，他们烟瘾很大，缺乏运动，经常工作到深夜，睡眠不足。
An elderly person may nap during the day and then sleep only five hours a night.
上了年纪的人白天会小睡一会儿，然后晚上只睡5个小时。
I sleep less than six hours a night and the job provides no vacations and little money, but the happiness and satisfaction I feel is rewarding enough.
我每晚睡不到6个小时，这份工作没有假期，也没有多少钱，但我感到的快乐和满足已经足够值得了。
Margaret Thatcher was also said to get by on four hours a night, while the 130-hour workweeks endured by tech heads has been held up as key to their success.
据说，玛格丽特·撒切尔每晚只睡4个小时，而技术负责人每周工作130个小时，这一工作时长是他们成功的关键。
If Steel was routinely sleeping for four hours a night, she would be drastically underestimating the negative impact, says Alison Gardiner, founder of the sleep improvement programme Sleep station.
睡眠改善项目“睡眠站”的创始人艾莉森·加德纳说，如果斯蒂尔通常每晚只睡4个小时，她就大大低估了其负面影响。
From diary entries and other personal accounts from the 18th and 19th centuries, sleep scientists have reached the conclusion—that the average person used to sleep about 9.5 hours a night.
从18世纪和19世纪的日记和其他个人记录中，睡眠科学家已经得出结论——人的平均睡眠时间约为每晚9.5小时。
That suggests that catch-up sleep may undo some but not all of the damage that sleep deprivation causes, which is encouraging, given how many adults don't get the hours they need each night.
这表明补觉可以弥补部分但不是全部睡眠缺乏造成的损害，考虑到有很多成年人每晚都没有得到他们所需的睡眠时间，这令人鼓舞。
People can go out to work in the daylight hours and then come to night school in the evening.
人们可以白天工作，晚上再来夜校上课。
Many people stay up late at night, which makes them feel tired during working hours.
很多人晚上熬夜,这使得他们在工作时间感到疲劳。
Last night, after what seemed hours of damp turmoil, I got up and crept slipperless down the stairs, feeling my way in the faint street light that came through the window.
昨晚，在经历了几个小时的混乱之后，我起床了，没穿拖鞋，蹑手蹑脚地走下楼梯，借着从窗户透进来的微弱街灯摸索着前进。
He comes in every Friday night around six and he just sits there for hours.
他每个星期五晚上6点左右过来，就在那里坐几个小时。
A week later, they were asked to sleep for only four hours every night for two nights in a row.
一周后，他们被要求连续两晚每晚只睡四个小时。
Most people require between 7 and 8 hours each night. If needed, set a bedtime reminder alarm on your alarm clock.
大多数人每晚需要7-8小时睡眠，如果需要的话，在你的闹钟上设置一个睡前提醒闹铃。
The sundial's counterpart, the water clock, was designed to measure temporal hours at night.
日晷的对应物是水钟，用来测量夜间的时间。
Sleepwalking often happens in the first few hours of the night.
梦游通常发生在夜间的头几个小时。
How many hours do you sleep every night?
你每天晚上睡几个小时？
How many hours do you sleep every night?
你每天晚上睡几个小时？
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