Video games and TV might keep children engaged for hours on end, but they are not helpful to children's overall cognitive development.
电子游戏和电视可能会让孩子们连续玩上几个小时，但它们对孩子的整体认知发展没有帮助。
In general, each of us needs about 8 hours of sleep each day to keep us healthy and happy.
一般来说，我们每个人每天需要大约8个小时的睡眠，以维持健康和保持愉悦。
Having pictures to colour will keep children amused for hours.
给图片涂上颜色可以让孩子们开心好几个小时。
Grown-ups usually need 6-8 hours of sleep to keep active.
成年人通常需要6-8小时的睡眠来保持活力。
He would keep working hard on something for many hours till midnight.
他会为一件事情奋战数个小时，直至午夜。
Others think it's crazy to keep a dog sitting near a "box" for several hours a day.
另一些人则认为让狗狗每天坐在“盒子”旁边好几个小时太疯狂了。
To keep healthy, doctors and researchers strongly advise that you shouldn't use screens for long hours.
为了保持健康，医生和研究人员强烈建议不要长时间盯着屏幕。
The tonic will keep for 24 hours in the fridge.
这个滋补剂可以在冰箱中保持24小时。
If your child gets sick, keep him home for 24 hours after the fever breaks on its own, without the help of medication.
如果你的孩子生病了，在出现无故发烧且药物治疗无效的情况后，让他24小时全天呆在家里。
But we try to keep our kids from watching more than two hours of television a day: we don't want them to be couch potatoes, too.
但是，我们尽量让孩子们每天看电视不超过两个小时。我们不想让他们也变成电视迷。
I still do my best work in the mornings (though not usually that early), so I try to keep those hours for my writing.
我现在仍然在早上工作得最好(虽然不总是那么早)，所以我尽量把这几个小时保留作为我的写作时间。
Keep the demonstration to one hour, with up to two additional hours for feedback and discussion.
用一个小时的时间进行演示，大概花费另外两个小时的时间进行演示的反馈和讨论。
They also keep us fresh so that we don't end up burning out after only a few hours work.
休息还能使我们精力充沛，使我们在完成仅仅数小时的工作后不至于变得精疲力尽。
Emergency units are punished for keeping patients waiting more than four hours-so some admit patients before four hours are up and then keep them hanging about.
急诊室如果使病人等待超过四小时就会受到处罚，那么一些急诊室就在四小时即将结束前接纳病人，并继续让他们候着。
Neither side wants to return to a time where Russia measured its GDP in the hours it could keep America at the nuclear negotiating table.
双方都不想回到这个年代：俄罗斯用能够把美国拖在核谈判桌上的小时数来衡量自己的GDP水平。
You may be given pain medication or eyedrops to keep you comfortable for several hours after the procedure.
术后会给你止疼药或眼药水以保持几小时的舒适。
Thermal containers, which can keep food warm for a few hours, are recommended to avoid losing nutritional value in the microwave.
保温盒备受推崇，因为它可以保温几个小时，这样一来就不会因为使用微波炉加热而导致营养价值流失。
Maybe, you need more warmth than the fabric provides. If that’s the case, then you probably want to take a look at these battery powered Hand Warming Gloves that will keep your hands warm for 8 hours.
如果感觉普通手套不够好，织物供暖还不够暖和，那么，这款电池供热保暖手套正是你想要的，它可以连续8个小时让手暖暖和和的。
To keep the battery charged, it requires exposure to 10 hours of indoor light each day or 1.5 hours of sunlight.
为给电池充电，须达到每天10小时的室内光照或1.5小时的日照时间。
She wrote how the survivors huddled in the bottom of the boat to keep warm until they were rescued two hours after the sinking by the ship Carpathia.
她写到幸存者都蜷缩在船底部来取暖，直到在船沉没后两小时他们获救为止。
Even exercising two hours a day isn't enough to keep astronauts' bones from breaking down during long-duration spaceflights.
即使是每天长达两小时的锻炼也不足以防止宇航员在长期的太空航行中的骨质流失。如何防治？
It's simple, it's elegant and it has more than enough music videos to keep you occupied for hours at a time.
它很简单、优雅，有着极为充足的音乐视频资源供你一次听上几个小时。
His advice: eat within an hour of waking to kick-start your metabolism. Then keep eating every three to four hours ending an hour before bedtime.
MacDonald建议：醒来后的一小时内吃东西让代谢开始工作，然合保持每三到四小时进食一次，直到睡前的一小时。
"If your cycle length is shorter than 24 hours, you need evening light to keep you synchronized," Duffy says.
如果你的周期长度小于24小时，你就会需要晚上睡得晚来保持同步。“Duffy说。”
As a stimulant it will keep you awake, even if used nearly six hours before bed.
作为兴奋剂它会让你保持清醒，即使差不多是在睡觉前6个小时。
Projects vied to get computer time, and the earliest information technology (IT) managers worked to keep systems busy 24 hours per day, seven days per week.
不同的项目之间必须竞争才能获得机时，而最早的信息技术 (IT)管理人员的任务是保持系统每天24小时、每个星期7天不间断地进行工作。
Only check Facebook or Twitter once an hour (or every two hours); keep them closed other than at their allotted times.
每个小时只看一次Facebook或者Tweeter（或者每两个小时一次）；把它们关上而不是一直关注。
Something more like “See how this computer geek can double your web sales in 24 hours or less…” influences the reader to keep reading.
譬如：“看这个电脑玩家能够在24小时或更少的时间内将您的网络销售翻一番...” 等等诸如此类。
Something more like “See how this computer geek can double your web sales in 24 hours or less…” influences the reader to keep reading.
譬如：“看这个电脑玩家能够在24小时或更少的时间内将您的网络销售翻一番...” 等等诸如此类。
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