line of sightBrE/ˌlaɪn əv ˈsaɪt/NAmE/ˌlaɪn əv ˈsaɪt/ (also ˌline of ˈvision, ˈsight-line) nounanimaginarylinethatgoesfromsb'seyetosththattheyarelookingat视线◆Therewasacolumndirectlyinmylineofsight, soIcouldonlyseehalfthestage. 有一根柱子正挡着我的视线，所以我只能看见舞台的一半。