The level of sulfur dioxide gas above Venus's clouds shows large and very frequent fluctuations.

金星云层上方的二氧化硫气体水平显示出巨大且非常频繁的波动。

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And 28% of very frequent business travelers even prefer that their free applications come with advertising.

而28%的频繁商务旅行者甚至表示，他们希望能在免费手机软件上看到广告。

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In the real world, however, we have seen very frequent coding errors caused by this lack of convenient functions.

然而，在现实世界中，我们常常见到由缺少方便的函数而导致的编码错误。

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Because here is my take as a very frequent longtime flier and travel industry professional.

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The trip takes about nine minutes (as long as it used to take to read the now defunct Hong Kong Star, a lowbrow tabloid newspaper, it was said), and departures are very frequent.

BBC: The amazing views of Hong Kong

In some cases, Delta is reducing the number of flights per day but increasing the size of the plane, bucking conventional airline wisdom that held business travelers preferred schedules with very frequent flights.

WSJ: Regional Jets: Are These Model Airplanes?