Self employment can yield the middle class lifestyle but often requires years of working 60 or more hours a week to do so.

选择自营职业，你可能有机会体验中产阶级的生活方式，但是这往往需要人们为之工作每周60小时以上，也许很多年都将如此度过。

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The idea is that any set of values from a given input class should yield the same result; therefore, they are equivalent.

从输入类设置的任何值，都会产生出相同的结果；因此它们是相等的。

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The albatross is the king of the gliders, the class of fliers which harness the air to their purpose, but must yield to its opposition.

信天翁是滑翔飞行的鸟类之王，它能自如地驾驭空气，但必须顺气流飞行。

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As a final note, the historically narrow spread between high yield bonds and Triple-B corporates does not mean that the high yield asset class is materially overvalued.

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First-class existing buildings are priced to yield only around 5% to an all-cash buyer, says research firm Green Street Advisors. (The return they talk about is rent minus the costs of operating and maintaining the building and leasing any empty space.) But a skillfully developed new property can bag an annual cash return of up to 10% of its construction costs.

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Yet, high yield issuers are doing pretty good as an investment class.

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