英语词汇“tracking system”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	tracking system
释义	tracking system Educ. See track system. [1925-30]
随便看	rough-winged swallow roul. roulade rouleau Roulers roulette Roum. Roumania Roumelia round roundabout roundabout chair. round angle round arch round barrow round character round clam round dance rounded roundel roundelay rounder round-eye round-faced round file.

英语词典包含168451条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。