预订业务对象：包括关于机票预定的所有信息。

Reservation business object: Includes all information about the reservation of a flight.

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机票预定系统是另一个好例子。

An airline reservation system is another good example.

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例如，去哪儿目前承担了中国所有机票预定量的30%左右。

For example, Qunar currently is responsible for around 30% of all airline tickets booked in China.

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