rust
Definition
A reddish-brown substance formed by the oxidation of iron or steel when exposed to moisture.
日本語 鉄や鋼を水にさらすと赤茶色の物質
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.
日本語 鉄や鋼を水にさらすと赤茶色の物質
"The old bicycle was covered in rust after being left outside all winter."