If an ant finds an outstanding hole—such as the inside of an acorn or a rock crevice—it recruits another scout to check it out.

如果一只蚂蚁找到了一个出色的洞穴——比如橡子或岩石裂缝的内部——它就会叫来另一只侦察蚁对洞穴进行检查。

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Finally, guests can check-out from their mobile device at any time, even once they have left the property, settling outstanding charges via secure payment systems.

最后，客户可以在任何时候通过手机结账，甚至在他们离开酒店之后，他们也可以通过安全的支付系统来结算一些未支付的费用。

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To prevent malicious attacks or stale connections, the accepting thread should occasionally check the sockets outstanding in AcceptEx by calling getsockopt and SO_CONNECT_TIME.

要预防此类攻击，接受连接的线程应该不时地通过调用getsockopt()函数(选项参数为SO_CONNECT_TIME)来检查AcceptEx()里守候的套接字。

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When serious bad guys get nabbed for a minor crime, it provides an opportunity to check for outstanding warrants on them and get them off the streets.

WSJ: Stopping Urban Crime Without Jail Time

Motorists buying a used car are being advised to get it independently inspected, but also to check its history to make sure it has not been stolen, written off for insurance purposes or still carries an outstanding loan.

BBC: NEWS | UK | Quarter of used cars 'dangerous'