When the airlines decided to enforce these rules without giving anyone a heads-up, it created a lot of problems for travellers.
航空公司在决定执行这些规定时没有事先通知任何人，这给旅客带来了很多麻烦。
If we have to put our contingency plan into effect, we may want to give her a heads-up.
如果我们不得不施行应急计划，我们可能要给她个提前说明。
It also lets you set up an alert system, so if H1N1 arrives in your area, you'll get a heads-up.
这种应用程序还可以设置报警系统，因此，如果H1N1出现在用户附近区域，用户能立即获得警报。
And the proof is right above our heads. Up in space.
在我们的头顶上，太空就证明了这一点。
Just like drones before them, miniature satellites are beginning to fundamentally transform our conceptions of who gets to do what up above our heads.
就像之前的无人机一样，微型卫星开始从根本上改变了我们的观念：谁能在我们的头顶上做什么。
And when they lifted up their eyes afar off, and knew him not, they lifted up their voice, and wept; and they rent every one his mantle, and sprinkled dust upon their heads toward heaven.
他们远远地举目观看，认不出他来，就放声大哭。各人撕裂外袍，把尘土向天扬起来，落在自己的头上。
You might say the probability that you toss a coin and it comes up heads is a half, because it's equally likely to be heads and tails.
你可以说概率是你投掷一个硬币，出现正面的机会是一半，因为出现正面和背面的机会是相等的。
We tend to get so caught up in our own heads by planning the perfect weekend, outing, dinner, summer vacation or birthday party.
完美的周末，完美的出行，完美的晚餐，完美的暑假，完美的生日会……我们的头脑常常被这些追求完美的计划所困扰。
Robots of the future might end up resembling medieval monsters, with shrews' heads, octopuses' arms and lampreys' bodies.
未来的机器人可能会象中世纪时期的怪物，具有的鼩鼱的头，章鱼的足，七鳃鳗的身体。
According to the Employee Benefit Research Institute, 40 percent of household heads age 55 and older had housing debt in 2007, up from 24 percent in 1992.
根据职工福利研究中心的数据显示，在2007年，55岁以上的业主中有40%还背负着房贷，1992年时，这个比例还只有24%。
See their heads move up and down.
看到他们的头上下移动。
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。
Once they get an idea into their heads, they never give up.
他们一旦接受了某个想法，就永远不会放弃。
Their wearisome heads went up and down at the same rate, in hot weather and in cold, wet weather and dry, fair weather and foul.
不管天气是冷是热，是干是湿，是好是坏，它们那疲惫的机头都会以同样的节奏上下摆动。
Quite near the rock, but out of sight, two heads were bobbing up and down, Peter's and Wendy's.
离岩石很近，但看不见的地方，有两个脑袋上下浮动，是彼得的和温迪的。
They formed up in battle line, infantry in the center, cavalry on the wings, artillery to the rear firing over their heads.
他们排成作战队形，步兵在中央，骑兵在两翼，炮兵在后面朝他们头顶上方开火。
They popped up their heads and saw the forlorn little maiden.
他们探出小脑袋来，看见了这个可怜的小姑娘。
An academy was set up to train school heads.
一座用来训练校长的学院被建立了起来。
Now scientists say that by separating our heads from our bodies, the neck gave our brains a leg up in evolution.
现在科学家宣称脖子通过将我们的头部从躯干上分离开，给大脑的进化助了一臂之力。
随后去了北部。
Store employees are often given a heads up about what and when things are being marked down.
商店的雇员通常都会事先知道那些物品在什么时候会降价。
These photos included universal displays of happiness (broad smiles), pride (raised heads, puffed-up chests) and shame (lowered heads, averted eyes).
这些图片包括了被公认的下列表情：快乐(开怀大笑)，骄傲(昂首挺胸)和害羞(低头，转移目光)。
He now covers all technology, media, news services, sales, content and heads up the team that developed (among many other things) QVC's interactive TV operations on Sky and Freeview.
Burrell现在负责公司所有的技术、媒体、新业务、销售、节目内容等方面的工作，并且带领了一支专业队伍专门负责英国QVC在天空卫视和Freeview平台的互动电视业务。
Mention the Arab world and it conjures up images of people wearing white robes with red-and-white keffiyehs around their heads.
说到阿拉伯世界，它让人联想到的是人们穿着白色的长袍以及头上围着红白相间的头巾。
As we climbed up the hill, the air grew cooler and the Indian girls on the road wore shawls over their heads and shoulders.
在我们向山上爬行的过程中，空气变得凉爽起来，路上的印第安姑娘都披着披肩。
As we climbed up the hill, the air grew cooler and the Indian girls on the road wore shawls over their heads and shoulders.
在我们向山上爬行的过程中，空气变得凉爽起来，路上的印第安姑娘都披着披肩。
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