/ˌreləˈtɪvəti ||; ˌrɛləˈtɪvətɪ/noun
[U] (in physics 物理学) Einstein's belief that all movement is affected by space, light, time and GRAVITY(= the force that makes things fall to the ground) 相对论(指爱因斯坦的理论,认为所有运动都受空间、光、时间及引力的影响)
relativity/͵rɛləˋtIvətI; ˌreləˈtIvəti or ˌreləˈtIvIti/n [U] the relationship between time, space, and speed〔时间﹑空间﹑速度的〕相对性: Einstein's theory of relativity 爱因斯坦的相对论