There was only one pilot on board without any passengers.

飞机上只有一名飞行员，没有乘客。

So there is always a human safety pilot on board.

因此，飞机上总是有一名人类安全飞行员。

Global transportation firms are designing helicopter-size versions that could zip people around like flying taxis, Jetsons-style, without a pilot on board.

国际运输公司也已着手设计直升机大小，能够像飞行的出租车一样，像《杰森一家》里的飞船一样，在没有飞行员的情况下载着人们飞来飞去的无人机了。

At first, however, regulators are expected to grant airworthiness certificates only to flying taxis with pilots on board.

然而，起初，预计监管机构只会向载有飞行员的飞行出租车颁发适航证书。

There were two pilots on board. One was killed in the accident, the other parachuted to the ground. He was injured, but he survived.

飞船上有2名飞行员，一人在事故中遇难，另一人跳伞降落到地面后严重受伤，但幸存了下来。

And in case that does not sound futuristic enough, the small two-seater, called the EH216-S, was also cleared to fly without a pilot on board.

如果这听起来不够未来感，这款名为 EH216-S 的小型两座飞机也被允许在没有飞行员的情况下飞行。

The Suez Canal Authority or SCA oversees traffic within the canal and as usual, they place two official SCA pilots on board the ever given to help its crew travel along the complicated process of getting through the canal.

苏伊士运河管理局（SCA）负责运河内的交通，像往常一样，他们在船上安排了两名官方的运河管理局领航员，帮助船员沿着复杂的水程通过运河。