rust
Definition
A reddish-brown substance formed by the oxidation of iron or steel when exposed to moisture.
中文 铁或钢与水分接触氧化而形成的红棕色物质。
Example
"The old bicycle was covered in rust after being left outside all winter."
A reddish-brown substance formed by the oxidation of iron or steel when exposed to moisture.
中文 铁或钢与水分接触氧化而形成的红棕色物质。
"The old bicycle was covered in rust after being left outside all winter."