Scientists are mostly stumped as to how the radio frequency waves emitted by cellphones, which lack the punch to break chemical bonds or disrupt DNA, might cause cancer.

科学家们主要搞不懂的是，手机所释放的无线电波，连打断化学键或扰乱dna的冲击力都没有，又怎么可能导致癌症呢？

youdao

Poseida had been the least damaged of the major Atlantean cities after the break up into islands, and was still of a very high frequency and quality of life.

波赛达曾是亚特兰提斯主要城市破碎成岛屿后最少受到损坏的，仍存有很高的频率和生活品质。

youdao

You may need to alter your walk break frequency to adjust for breaks in your training, course conditions, and weather conditions.

在训练过程中，你也许需要多次调整步行安排，随着路程、天气的变化而变。

youdao

Others worried about the hyperactivity of high-frequency traders have suggested charging them for each trade they break, although that would not necessarily improve liquidity and is an idea that is unlikely to be pursued.

ECONOMIST: The post mortem into the stockmarket slide of May 6th

In Las Vegas casinos, for instance, hourly breaks are often built into shifts, because health research shows that a higher frequency of short breaks can be more beneficial than just one long break.

BBC: The cities that never sleep

That contrasts with the average of 250 shares on exchanges where institutions break big order into slivers to avoid moving the markets or getting played by high frequency traders.

FORBES: The Decade's Pioneers Who Innovated in Finance