尽管如此，细心的观察者未来还是会发现许多影响人类世界的经济趋势。

That said, many of the economic trends that shape our world can be spotted ahead of time by careful observers.

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英国人带着一种好奇的表情问道。他那冷峻的脸上竟会现出这种表情，一个细心的观察者见了大概会很惊奇的。

"May I ask what that was?" said the Englishman with an expression of curiosity, which a close observer would have been astonished at discovering in his phlegmatic countenance.

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此外，如果你是一个细心的观察者，在你的旅行过程中你会学到许多有关当地的地理、生物和历史方面的知识。

Furthermore, if you area careful observer, you can learn much during your travel about the geography, biology, and history of the places you visit.

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