factor /ˈfæktə/ n. ［c］因素，要素，因子：There’s the internal factor as well as the external.既有内部因素，也有外部因素。2 and 5 are factors of 10. 二和五是十的因数。These were all factors which had to be taken into consideration. 这些都是必须要考虑的因素。