[mass noun]a relationship or situation in which two or more different things enhance or emphasize each other's qualities or form a balanced whole 互为补充;相辅相成 a culture based on the complementarity of men and women. 建立在阴阳互补基础上的文化。 ■(Physics)the concept that two contrasted theories, such as the wave and particle theories of light, may be able to explain a set of phenomena, although each separately only accounts for some aspects (物理)互补性,并协性