这本最新选集既无风格，又无创意。
他还喜欢在无风的日子里驾着帆船出海，“只为了迎接挑战”。
He also liked to take his sailboat out on the water on windless days, "just for the challenge".
最严重的是在19年，因为寒冷的天气和无风的条件，污染的空气覆盖了城市，这震惊了整个世界。
The heaviest, which shocked the world, was in 19 because of cold weather and windless conditions, polluted air covered the city.
但这样的无风险套利机会是不存在的。
The potentialfor arbitrage means such profits cannot be earned.
比如说室内无风，就不能有效蒸发汗水。
With no wind indoors, for example, sweat will not evaporate as effectively.
雷区之五：无风险的概念探索时间不足。
那么，什么来取代美国国债成为全球性的无风险资产呢？
So what might replace Treasury bonds as the global risk-free asset?
马里泊萨号进入赤道无风带那天，马丁比任何时候都痛苦了。
The day the Mariposa entered the doldrums, Martin was more miserable than ever.
这引领出一种可能普遍化并且难以克服的“无风不起浪”文化。
This leads to a "no smoke without fire" culture that may be pervasive and hard to overcome.
一方面，是否存在可作为“无风险”基准的可行替代品尚不清楚。
For one thing, it's not clear that there is a viable alternative as the "risk-free" benchmark.
再生能源需要有效的存储，才能在多云、无风天气及夜晚得以使用。
That means it needs to be efficiently stored so it can be utilized on cloudy, windless days and at night.
汗水从他的鼻尖上滴下来，屋内无风，非常温暖，热得我脸颊发烧。
Sweat dripped from the tip of his nose, and the still air was so warm that my cheeks burned.
最后全球范围内对“无风险”资产的贪求将使得这些资产有风险了。
In the end, the world's insatiable demand for the "risk-free" reserve asset will make that asset anything but risk-free.
毕竟，国债利率是无风险利率，其他的资产的定价都扣除了这个因素。
After all, the Treasury-bond yield is the risk-free rate, off which other assets are priced.
无论如何，对外国投资者而言，这意味着美国国债并不是完全无风险。
However, for foreign investors, that means Treasury bonds are not risk-free at all.
家中的氡浓度越低，风险也就越小，但尚不了解氡接触低于何浓度才无风险。
The lower the radon concentration in a home, the lower the risk as there is no known threshold below which radon exposures carries no risk.
这些雄帝企鹅不断地移动着，从寒冷的外圈慢慢地转动到温暖无风的中心部位。
The birds move constantly, slowly rotating from the cold outside rings to the warm, wind-free center.
此外，高温、无风的气象条件非常给力，似乎有意要在美国东部成全一场经典的空气污染事件。
On top of that, weather conditions—high temperatures, calm winds—were just right for a classic summer pollution event in the East.
巴西投资者仅仅把资金投入毫无风险的债券就能获得丰厚回报，这种日子已一去不返。
Brazilian investors can no longer reap extraordinary returns just from parking their money in risk-free bonds.
但是潮汐流远比风容易预测，这意味着公共事业公司利用潮汐时不必担心意外的无风天。
But tidal streams are far more predictable than wind, which means utilities using tidal don't have to worry about unexpected still days.
但是在那些奇特的金融产品中，长长期望后的回报可能是零，或者最终低于无风险利率。
But in more exotic asset classes, the long-term expected return may be zero, or at least less than the risk-free rate.
但是在那些奇特的金融产品中，长长期望后的回报可能是零，或者最终低于无风险利率。
But in more exotic asset classes, the long-term expected return may be zero, or at least less than the risk-free rate.
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