“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	left-handed muon left-handed polarization left-handed polarization, levopolarization left handed polarized waves left-handed polarized waves left-handed reference frame left-handed rotation left-handed system left handed transmission line left-handed transmission line left-handed trihedral left-handed upper continuous left-hand inclusion left-hand lower derivative left-hand lower limit left-hand parenthesis left-hand rule left-hand side left hand spinors left-hand upper derivative left-hand upper limit left hereditary ring left heredity left Hermite ring left homotopy inverse

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