Definition: If a computer or machine shuts down or someone shuts it down, it stops operating. Level: B1
离开前请确保关闭你的电脑。
Make sure you ___shut ___down your computer before you leave.
机组人员关闭了飞机四个引擎中的一个。
The crew ___shut ___down one of the four engines on the plane.
我关闭了电脑，然后打电话给我妈妈。
I ___shut ___down the computer and called my mom.
