'I'd better contact ground control, ' said the radio operator.

” “我最好联系地面控制中心， ” 无线电接线员说。

Mr. Jouty said they still had no idea why the aircraft began to descend or why it failed to contact air traffic control.

朱提表示，他们仍然不知道飞机为何开始下降，以及为何不能联系空中交通控制中心。

Over 90% of international airlines use English as their language of choice (known as " Airspeak" ), and an Italian pilot flying an Italian plane into an Italian airport, for example, contacts ground control in English.

超过 90% 的国际航空公司使用英语作为他们的首选语言（称为“Airspeak” ），例如，一名意大利飞行员驾驶意大利飞机进入意大利机场时， 会用英语联系地面控制人员。