The pilot held a current airline transport pilots licence (helicopters and gyroplanes) and a valid class one medical certificate. He had 3, 900 hours of operating experience.

肇事直升机的飞行员具备有效的航空运输飞行员执照(直升机和自转旋翼机)和一级体检合格证明书，并拥有3,900小时的飞行经验。

youdao

The pilot held a current airline transport pilots licence ( helicopters and gyroplanes ) and a valid class one medical certificate. he had 3, 900 hours of operating experience.

肇事直升机的飞行员具备有效的航空运输飞行员执照（直升机和自转旋翼机）和一级体检合格证明书，并拥有3 ， 900小时的飞行经验。

youdao

Depending on about a billion factors like your operating system, the stability of those servers, and ISP support, connectivity to those sites could get dicey during the next 24 hours.

在接下来的24小时里，对这些的网站访问连接有可能存在不确定性，就像你的操作系统存在十亿个不安定因素一样，这一切有赖于那些服务器的稳定性，还有isp的支撑。

youdao

Or suffer a heart attack and be on the operating table for some number of hours and then, thanks to cardiac surgery or what have you,be resuscitated.

或是心脏病发，在手术室里经历数小时，最终被心脏外科医生救回来。

耶鲁公开课 - 死亡课程节选

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