You have their picture set as background or lock screen (or BOTH!) on your phone.

你把对方的照片设置为手机的背景或锁屏(或两者皆是)。

youdao

In this container, with plain color set as background, the bright color super cars, shuttling customers and workers interact harmoniously under the light.

在这个容器里，以素色为背景、在灯光的照耀下，亮色的跑车、动态穿梭的顾客和工作人员，形成了和谐的互动。

youdao

He points out that it is possible to identify specific factors as the primary causes of a particular historical event only relative to an initial set of background conditions.

他指出，只有相对于初始的背景条件，才有可能将特定因素确定为特定历史事件的主要原因。

youdao

As a background matter, foundations must follow a special set of tax rules in order to avoid certain penalties.

FORBES: Why Program-Related Investments Are Not Risky Business

One big change to business is that sites would have to allow new users to set their privacy settings when they register, rather than having that as a background setting.

FORBES: California Bill Would Let Parents Prune Their Kids' Facebook Pages