美国当局正在调查可能由无人驾驶技术引起的首例死亡案件。
US authorities are investigating the first death potentially caused by self-driving technology.
这辆特斯拉汽车的司机于今年五月在与一辆货车相撞后死亡。受到审查的是特斯拉的autopilot功能，它可以自动改变车道并对交通状况作出反应。
The driver of a Tesla car died in Florida in May after colliding with a lorry. Under scrutiny is Tesla's Autopilot feature, which automatically changes lanes and reacts to traffic.
在一份声明中，特斯拉公司表示，这辆Model S型号的汽车没有能够识别出从其车道上开过的“明亮天光下拖拉机挂车的白边”。该公司称，该事故是一个“悲痛的损失”。
In a statement, Tesla said it appeared the Model S car was unable to recognise "the white side of the tractor trailer against a brightly lit sky" that had driven across the car's path. The company said the crash was a "tragic loss".
此次相撞导致了现年40岁的特斯拉司机约书亚·布朗的死亡。而卡车的司机当时牵引着挂车，没有受伤。
The collision led to the death of Tesla driver Joshua Brown, 40. The driver of the truck, which was pulling a trailer, was unhurt.
根据布朗先生此前发布到Youtube上的一个视频显示，车载摄像机记录了之前的一次事件，该车正在躲避旁边车道行驶的货车。
A video on YouTube, which appears to have been posted by Mr Brown, shows a dashboard camera recording of a previous incident, with the car steering to avoid a lorry in the next lane.
他写道：“特斯拉Model S型号汽车的autopilot可以自动让该车避免与一辆动臂升降车相撞。毫无疑问这是我拥有的最好的车，我在充分地使用它。它做了很多很多不可思议的事情，不过这是车载摄像机拍到的更有趣的事情之一。”
He wrote: "Tesla Model S autopilot saved the car autonomously from a side collision from a boom lift truck. Hands down the best car I have ever owned and use it to its full extent. It has done many, many amazing things, but this was one of the more interesting things caught on the dashcam."