Why: If you want to advance in your profession, you’ll eventually have to do the job that your boss is doing, even if only for a brief period of time in order to move up.

原因：如果你想职业生涯的提升，你肯定要做你上司相同的工作，尽管有时可能仅仅是上升路上的一小段时间。

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During the probation period, a worker may discharge the labor contract if he informs the employer three days in advance.

劳动者在试用期内提前三日通知用人单位，可以解除劳动合同。

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In practice, there are controversy on whether to allow the parties agreed to change the limitation period, and whether to allow the parties to give up the interests in advance.

在实践中，对于是否允许当事人约定改变诉讼时效期间以及是否允许当事人预先放弃诉讼时效利益两个问题存在着争议。

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If you are only going to rent your house out for a few days or weeks, you won't have to worry about collecting from deadbeat tenants, since costs for the entire rental period are paid in advance.

WSJ: Weeding Out Deadbeat Renters��WSJ House Talk

Korman ordered the requirement lowered to one-half-of-one-percent, and the state legislature later changed the law in advance of the year 2000 election period.

CNN: Republicans step up fight over primary ballot in New York

The deal comes as the advertising market heats up in advance of the yearly TV ad-sales period known as the upfront.

WSJ: Procter & Gamble Signs Ad Deal With Oprah Winfrey Network