track.ing
tracking的音标和读音:DJ音标发音: [ˈtrækiŋ]KK音标发音: [ˈtrækɪŋ]
tracking的词性:n.(名词)
1. The placing of students in any of several courses of study according to ability, achievement, or needs.按学生成绩分组:根据能力、成绩或需要将学生分成几个学习进程组