This is an outstanding check.

这是一张未兑现金的支票。

youdao

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。

youdao

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。

youdao

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