rust
/ɹʌst/
B1 · Intermediate★★★☆☆
Simple Meaning
铁或钢受潮时形成的红褐色物质
When to Use
💬Daily Conversation⚙️Technical
Intermediate — can handle common situations
Examples in Conversation
“这辆旧自行车的链条上有很多锈。”
“如果把金属放在外面，它就会开始生锈。”
Learning Path
▶Full Definition
The deteriorated state of iron or steel as a result of moisture and oxidation.
“The rust on my bicycle chain made cycling to work very dangerous.”