It started as a mom-and-pop operation, and the childless Wallaces always considered employees to be part of their family.

这家杂志最初采用家庭经营的运作方式，华莱士夫妇没有子女，他们总是把员工当成家庭成员来对待。

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Listing 7 shows the modified version of the pop operation for the blocking queue.

清单7给出阻塞队列的pop操作定义。

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This means that if the system could not perform the push or pop operation within the time limit you specify, the operation should not execute at all.

这意味着，如果系统无法在指定的时间限制内执行添加和取出操作，就应该根本不执行操作。

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It started off as a mom-and-pop operation and built itself up.

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The dates of operation for the pop-up store are significant because it also coincides with Las Vegas Jewelry Week, a series of jewelry industry tradeshows that run roughly from May 28 till June 4.

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The photographer is able to use it at the default position, or raise it to the pop-up position with simple operation to widen its discharge angle to cover a 28mm angle of view (in the 35mm format).

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