请辨析course route passage channel它们都有路线的含义，请问具体如何用？

请辨析course route passage channel它们都有路线的含义，请问具体如何用？ course route 区别做线路讲时有什么区别 请辨析? pass the exam和pass the course有什么区别? pass on中on的用法及类同的短语辨析pass与pass on i hope to pass the course and leave the past 请辨析issue,problem 请辨析issue,problem though,pass,across用法有什么不同?辨析一下! He flew from Europe to Tokyo by the ________ across the Pole．course route may routine选哪个 请辨析issue,problem请辨析issue,problem 英语同义词辨析!请辨析下列同义词mutinyinsurrectionrebellionrevoltuprising course course. course Route milelog route是什么意思 route therefore