autopilot
noun [ C or U ] uk/ˈɔː.təʊˌpaɪ.lət/ us/ˈɑː.t̬oʊˌpaɪ.lət/
（飞机等的）自动驾驶仪
a device that keeps aircraft, spacecraft, and ships moving in a particular direction without human involvement
The plane was on autopilot when it crashed. 飞机坠毁时处于自动驾驶仪操作状态。
Idiom
on autopilotidiom 无意识地;不假思索地;机械地，习惯性地
doing something without thinking about it or without making an effort
I worked the last hour of my shift on autopilot. 下班前的1个小时，我完全就是靠惯性熬过来的。