举例而言，你看多少本书，看多长时间电视，这些都能看出你的旅行喜好。
How much you read, for example, and how much TV you watch are indicators of the trips you'll prefer, Dr. Plog says.
我不知道任何显示电视本身或天然就对孩子有害的证据——这取决与他们观看什么节目、看多长时间。
I know of no evidence that TV is in and of itself harmful for children-it depends on what they watch and how much they watch.
微型摄像头现在能够被嵌入到大屏幕中或者隐藏在大屏幕的周围，追踪着那些看广告的人以及他们在广告前停留了多长时间。
Small cameras can now be embedded in the screen or hidden around it, tracking who looks at the screen and for how long.
所以这里提供一个免费的一步一步一步的安装指南，大概需要15分钟（具体时间还得看它花多长时间下载这个操作系统）。
So we’ve put together a step-by-step guide to doing this, for free, in around 15 minutes (depending on how long it takes to download the OS itself).
有时我们看一个故事用不了多长时间可演绎这个故事却要用一生。
Sometimes we read a story not take long before can deduce the story but it takes a lifetime.
所要做是看它重新出现在另一边花多长时间，这样就可以计算这个模糊物体的大小。
All you have to do then is time how long it takes the star to reappear on the other side and you can calculate the size of the obscuring object.
教授想观察猴子，看它需花多长时间才能找到食物。
The professor wanted to watch the monkey and find out how long it would take the monkey to find the food.
老师看就笑了，开始说教，问我们写一样的古诗有多长时间了？
See teachers laughed and began preaching, and asked us to write the same ancient poetry how long?
老师看就笑了，开始说教，问我们写一样的古诗有多长时间了？
See teachers laughed and began preaching, and asked us to write the same ancient poetry how long?
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