| 释义 |
background/ˈbækɡraʊnd/n. 1 part of a scene, picture, or description, that serves as a setting to the chief figures or objects and foreground (风景、画、描述的)后景，背景 2 an inconspicuous or obscure position 隐蔽的地方，不引人注目的地方 kept in the background 躲在不引人注目的地方 3 a person's education, knowledge, or social circumstances 出身背景(如学历等) 4 explanatory or contributory information or circumstances 背景资料 5 Physics 【物理学】 low-intensity ambient radiation from radioisotopes present in the natural environment 本底(辐射) 6 Electronics 【电子学】 unwanted signals, such as noise in the reception or recording of sound 背景噪声，杂音 |