background

A wallpaper or background (also known as a desktop wallpaper, desktop background, desktop picture or desktop image on computers) is a digital image (photo, drawing etc.) used as a decorative background of a graphical user interface on the screen of a computer, smartphone or other electronic device. On a computer, wallpapers are generally used on the desktop, while on a mobile phone they serve as the background for the home screen. Though most devices come with a default background image, modern devices usually allow users to manually change the background image.

墙纸或背景（也称为桌面墙纸、桌面背景、桌面图片或计算机上的桌面图像）是一种数字图像（照片、绘图等），用作计算机、智能手机或其他电子设备屏幕上图形用户界面的装饰背景。在电脑上，墙纸通常用于桌面，而在手机上，墙纸则用作主屏幕的背景。尽管大多数设备都带有默认的背景图像，但现代设备通常允许用户手动更改背景图像。

The term "wallpaper" was used in Microsoft Windows before Windows Vista (where it is called the "desktop background"), while macOS refers to it as "desktop picture". On older systems which allowed small repeated patterns to be set as background images, the term desktop pattern was used.

“壁纸”一词在Windows Vista之前的Microsoft Windows中使用（在Windows Vista中称为“桌面背景”），而macOS将其称为“桌面图片”。在允许将小的重复模式设置为背景图像的旧系统上，使用了术语桌面模式。

Background music refers to a mode of musical performance in which the music is not intended to be a primary focus of potential listeners, but its content, character, and volume level are deliberately chosen to affect behavioral and emotional responses in humans such a concentration, relaxation, distraction, and excitement. Listeners are uniquely subject to background music with no control over its volume and content. The range of responses created are of great variety, and even opposite, depending on numerous factors such as, setting, culture, audience, and even time of day.

背景音乐指的是一种音乐表演模式，在这种模式中，音乐并非旨在成为潜在听众的主要关注点，但其内容、特征和音量水平是故意选择的，以影响人类的行为和情绪反应，如专注、放松、分心和兴奋。听众只能听背景音乐，无法控制音量和内容。根据环境、文化、观众，甚至是一天中的时间等诸多因素，所产生的反应范围多种多样，甚至截然相反。

Background music is commonly played where there is no audience at all, such as empty hallways and restrooms and fitting rooms. It is also used in artificial space, such as music played while on hold during a telephone call, and virtual space, as in the ambient sounds or thematic music in massively multiplayer online role-playing games.

背景音乐通常在没有观众的地方播放，比如空荡荡的走廊、洗手间和试衣间。它也被用于人工空间，比如在电话通话中暂停播放的音乐，以及虚拟空间，比如大型多人在线角色扮演游戏中的环境声音或主题音乐。

Background noise or ambient noise is any sound other than the sound being monitored (primary sound). Background noise is a form of noise pollution or interference.

背景噪声或环境噪声是指除被监测的声音（主要声音）以外的任何声音。背景噪声是噪声污染或干扰的一种形式。

A background light is used to illuminate the background area of a set. The background light will also provide separation between the subject and the background. Many lighting setups follow a three-point lighting or four-point lighting setup. Four-point lighting is the same as three-point lighting with the addition of a background light. In a four-point lighting, the background light is placed last and is usually placed directly behind the subject and pointed at the background. By adding a background light to a set, filmmakers can add a sense of depth to shots.

背景光用于照亮一组的背景区域。背景光还将在主体和背景之间提供分隔。许多照明设置遵循三点照明或四点照明设置。四点照明与添加背景光的三点照明相同。在四点照明中，背景光放在最后，通常直接放在被摄对象的后面，并指向背景。通过在场景中添加背景光，电影制作人可以为镜头增加深度感。

In film, the background light is usually of lower intensity. In video and television, the background light is usually of similar intensity to the key light because video cameras are less capable of handling high-contrast ratios.

在胶片中，背景光的强度通常较低。在视频和电视中，背景光的强度通常与关键光相似，因为摄像机处理高对比度的能力较弱。

六级/考研单词: desktop, compute, digit, electron, mobile, default, manual, deliberate, affection, distract, offline, pollute, interfere, illuminate, shot