“Zero and negative tour expense”的概念、定义、翻译、参考文献-科学参考

单词	Zero and negative tour expense
释义	Zero and negative tour expense Encyclopedia 管理学旅行社释 Zero and negative tour expense零负团费地接社不向组团社收取旅游消费者在旅游目的地的接待费用，或者倒向组团社支付一定的费用，通过旅游消费者在旅游目的地的购物、自费项目等收入来弥补团费差失并获取利润的一种经营模式。
随便看	blood-cerebrospinal fluid barrier blood clam blood coagulation blood coagulation function test blood-compatibility blood consumption blood deficiency blood deficiency causing wind blood deficiency of heart and liver blood delivery in wartime blood depletion blood donation blood donation law blood drop direction angle blood drop flight direction blood drop impact angle blood-epididymis barrier blood feud blood fingerprint blood flow blood flow amount & capacity measuring devices blood flow models blood gas analyzing system blood gas monitor blood glucose

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