s. covered with or consisting of rust
a. 生锈的, 腐蚀的, 生疏的, 顽固的, 腐烂的
[医] 锈色的
1. The old bike was rusty and needed some repairs.
这辆旧自行车生锈了，需要修理。
2. I found a rusty key in the backyard.
我在后院发现了一把生锈的钥匙。
3. His rusty skills in painting took time to improve.
他生疏的绘画技巧需要时间来提高。