Level 5 · word 7,964 of 20,000

rust

/ˈrʌst/ American
Picture: rust
  • n. 锈, 铁锈
  • v. 生锈
Definition
  • n. the reddish-brown substance that forms on metal
  • v. to become covered with rust
Example
Old bicycles left outside quickly start to rust.
放在外面的旧自行车很快就会生锈。