You’ll find yourself on a floor of glass, suspended over the sidewalk a quarter-mile below.
你将发现自己站在玻璃地板上，向下四分之一英里才是人行道。
You should have a smoke alarm outside each bedroom and on each floor of your home.
你应该在每间卧室外和家里的每层楼安装一个烟雾报警器。
She was born two months ago on the dusty floor of a mud hut in remote South Sudan, far from medical help.
两个月前，在没有任何医疗救助的情况下，她出生在偏远的南苏丹一个泥巴小屋的满是灰尘的地板上。
So is five seconds on the floor the critical threshold that separates a piece of eatable food from a case of food poisoning?
那么，在地板上放五秒钟这个时间，是将可食用食物与食物中毒区分开来的临界阈值吗？
The floor was covered with a litter of newspapers, clothes and empty cups.
地板上到处都是乱七八糟的报纸、衣服和空杯子。
There was a collection of books and shoes on the floor.
地板上有成堆的书和鞋。
A lot of the food goes on the floor but that doesn't matter.
很多食物掉在地板上，但是那不要紧。
There is a fire exit on each floor of the building.
这栋建筑每层楼都有个消防通道。
He was faced with a barrage of angry questions from the floor.
他面临着听众一连串的愤怒质问。
I've come to crash on your floor for a couple of nights.
我来你家打几个晚上的地铺。
Down one floor is a large collection of fossils found in the Kansas area.
下面一层是在堪萨斯地区发现的大量化石。
On November 12, while two men were busy cleaning windows, a rope of the platform broke near the 68th floor.
11月12日，当两名男子忙于清洗窗户时，68层附近的一根平台绳索断裂。
So what does science tell us about what a few moments on the floor means for the safety of your food?
那么，科学告诉我们地板上的几分钟对你的食物安全意味着什么呢？
To test the idea, caged night-migrating birds were placed on the floor of a planetarium during their migratory period.
为了验证这个想法，这些在夜晚迁徙的候鸟被关进笼子里，并且在它们的迁徙期间被放置在一个天文馆的地面上。
What does science tell us about what a few moments on the floor means for the safety of your food?
关于掉在地上的几秒钟对于我们的食物安全有何影响这个问题，科学告诉了我们什么呢？
For example, no matter how much a dancer wishes to leap off the floor and then start turning, the law of conservation of angular momentum absolutely prevents such a movement.
例如，无论一个舞者多么想要跳离地板，然后开始旋转，角动量守恒定律绝对阻止这样的动作。
Suddenly, she noticed a piece of paper on the floor.
突然，她注意到了地板上的那张纸。
The ground floor is about 86 square meters, roughly the size of a small two-bedroom apartment.
底层约86平方米，相当于一间小型的两居室公寓的大小。
The submersible Alvin investigates the Cayman Trough, a transform boundary on the floor of the western Caribbean Sea.
阿尔文潜水器研究开曼群岛海槽，这是西部加勒比海底面上的转换边界。
She crawled about the floor, peering at it with a candle for marks of a strange foot.
她在地板上爬来爬去，用蜡烛照着地板，看有没有陌生的脚印。
One evening before supper, the father noticed his son playing with a piece of wood on the floor.
一天晚饭前，父亲注意到儿子在地板上玩一块木头。
When you drop a piece of food on the floor, is it really OK to eat if you pick it up within five seconds?
当你把一块食物掉在地上时，只要五秒内捡起来就真的可以吃吗？
To her great surprise, the poor man was there sitting on the floor, his face was pale and a lot of blood was running on his right hand.
让她大为吃惊的是，这个可怜的人正坐在地板上，脸色苍白，右手大量流着血。
In order to describe human beings, he should keep the palm of his hand at a right angle to the floor.
为了描述人类，他应该保持手掌与地面成直角。
The following pages include a clear floor plan of the museum and its collections.
下面的页面包含了博物馆及其藏品的平面图。
With its huge dance floor, the Savoy became a big success overnight, attracting some of the best dancers and musicians in the New York area.
由于其巨大的舞池，Savoy 一夜之间大获成功，吸引了纽约地区最好的舞者和音乐家。
But when it wants to blend in with its environment to hide from its enemies, it can take on the color of its immediate surroundings: the ocean floor, a rock, a piece of coral, whatever.
但当它想要融入环境以躲避敌人时，它就会呈现出周围环境的颜色：海底、岩石、珊瑚等等。
There is a shop on the ground floor. It sells all kinds of newspapers and magazines.
一楼有个商店，在那可以买到各种报纸和杂志。
An urban food myth contends that if food spends just a few seconds on the floor, dirt and germs won't have much of a chance to contaminate it.
一个有关食物的都市神话声称，如果食物只在地上停留几秒钟，灰尘和细菌就不太有可能污染它。
An urban food myth contends that if food spends just a few seconds on the floor, dirt and germs won't have much of a chance to contaminate it.
一个有关食物的都市神话声称，如果食物只在地上停留几秒钟，灰尘和细菌就不太有可能污染它。
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