Learner's definition of RUST
[noncount]
1
: a reddish substance that forms on iron or some other metal usually when it comes in contact with moisture or air鐵鏽;金屬鏽 2
: a disease that causes plants to develop reddish-brown spots(植物)鏽病,鏽菌
3
: a reddish-brown color赭色;鐵鏽色
2 rust /ˈrʌst/ verb
rusts; rusted; rusting
rusts; rusted; rusting
Learner's definition of RUST
1
[no object] : to form rust : to become rusty生鏽 2
[+ object] : to cause rust to form on (something)使生鏽