overbook /ˈəʊvəˌbuːk/ ( overbooking, overbooked, overbooks )

• 1. 

  V-T/V-I If an organization such as an airline or a theatre company overbooks, they sell more tickets than they have places for. 超额订出

  例：

  Planes are crowded, airlines overbook, and departures are almost never on time.

  飞机拥挤不堪，航线超额订出，起飞几乎从来没有准时过。

  例：

  It's the airline's policy not to overbook its flights.

  这家航空公司的政策是不超额订出航班。