Our correspondent Jonathan Head is on board one of the search planes.

记者乔纳森·海德在搜救飞机上报道。

Officials say they've searched over 1,100 square miles, using boats and search planes.

官方称他们已经动用了船只和搜寻飞机，并搜寻了1100多英里。

Because the police didn’t find  Cooper when they searched the plane.

因为警察在搜查飞机时 没有找到库柏。

Search planes are returning for a second day to an area in the southern Indian Ocean to look for possible debris from the missing Malaysian Airline's flight.

在南印度洋海域搜索与马航失联航班有关残骸的飞机结束第二天的工作返航。