Level 4 · word 5,552 of 20,000

jack

/ˈdʒæk/ American
Picture: jack
  • n. 千斤顶, 插座
  • v. 顶起, 提高
Definition
  • n. a device for lifting heavy objects, or an electrical socket
  • v. to lift something with a jack, or to increase an amount
Example
He used a jack to lift the car and change the tire.
他用千斤顶把车顶起来换轮胎。