The answer may be that virtually all the water on Mars is now locked in the permafrost layer under the surface, with more contained in the planet's polar caps.

答案可能是，现在火星上几乎所有的水都被锁在地表下的永久冻土层中，更多的水被包含在这个星球的极地冰帽中。

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According to its proponents, a proposed new style of aircraft could, by skimming along the top of the atmosphere, fly between most points on Earth in under two hours.

根据其支持者的说法，一种新型飞机掠过大气层，可以在两小时内飞到地球上的大多数点。

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Because the face of the woman in the under image also appears on canvases Van Gogh is known to have painted, the surface painting must be an authentic self-portrait by Van Gogh.

因为下面的女人的脸也出现在梵高画过的画布上，所以这幅凸版印刷一定是梵高的自画像。

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If you stand under a skylight in the Visitor Center, you can see the bronze statue of Freedom high up on the dome outside.

VOA: special.2010.01.27

And in fact, under type checking, different languages sometimes fall on a spectrum from weak to strong typing.

实际上，在类型检查的下面，不同的语言会对应着,从弱到强的一个定型范围。

麻省理工公开课 - 计算机科学及编程导论课程节选

Notably, on Monday, the Treasury Department, under Secretary Henry Paulson, announced a proposal for fundamental change in our financial markets.

众所周知，在星期一，美国财务部部长，亨利·鲍尔森，宣布美国金融市场,将要改革的计划。

耶鲁公开课 - 金融市场课程节选

Anyone buying alcohol in Newquay must show a passport or driving licence to prove their age in a clampdown on under-age drinking in the resort.

BBC: Alcohol and drugs 'spotter' police on Newquay trains

It takes less than one second to launch the camera from the lock screen and the camera's autofocus locks in on your subject in under a second, to take nearly unlimited continuous shots simply by holding the shutter button.

ENGADGET: HTC One X exclusive to AT&T in the US, brings LTE, Beats, ICS and Sense 4 to Ma Bell

He argued that existing legislation in this area focused on under-fives' participation in institutions such as nurseries or childcare centres, and that more needs to be done to encourage parents to give their children "a chance to get their foot on the bottom rung of education before they go to primary school".

BBC: Sex education under fire in the Lords