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1A racetrack or other course on which practice runs are made.
2A course of study designed to train people in a particular subject or for a particular profession.
Early 19th century; earliest use found in The Morning Post.
雅致网英汉双解词典包含236457条英汉翻译词条，涵盖了常用英语单词及词组短语的翻译及用法，是英语学习的必备工具。