The simulation is not really interested simultaneously in all the customers that will shop during a day, but only in the ones who contend for checkout aisles at the same time.

实际上模拟并不会同时对一天内将要购物的所有顾客感兴趣，而是只对那些要同时争用付款通道的顾客感兴趣。

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It's a stigma all people who stutter contend with - the notion that because their words sometimes sputter or fail to come out at all, their minds must be somehow mixed up.

口吃的人常常被贴上一个不光彩的标签-由于说话卡壳或根本说出不来，他们就思维混乱。

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It's no foolproof vaccine, but the researchers who conducted the 2.5-year trial contend it's the first-ever hope of thwarting the spread of HIV and AIDS.

这并不是一种万无一失的疫苗，但经过两年半试验，研究人员认为它为抗击艾滋病病毒和防止艾滋病蔓延带来第一缕曙光。

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They contend people who are detained in these facilities are intentionally placed outside the protection of the law.

VOA: standard.2009.03.21

They include the four plaintiffs, who contend they were wrongly targeted because of their race.

WSJ: Trial provides window into NYPD practices

The naysayers who contend DNS filtering will hurt the industry are merely crying wolf.

FORBES: The Case For The PROTECT IP Act And DNS Filtering

They face opposition from people who contend the real goal is to make it almost impossible for local governments to pass new environmental and zoning rules.

NPR: Western Voters Consider Property Rights Changes