rusty

1. ADJ A rusty metal object such as a car or a machine is covered with rust, which is a brown substance that forms on iron or steel when it comes into contact with water. 生鏽的

...a rusty iron gate. …一扇生鏽的鉄門。

2. ADJ If a skill that you have or your knowledge of something is rusty, it is not as good as it used to be, because you have not used it for a long time. 生疏的

You may be a little rusty, but past experience and teaching skills won't have been lost. 你可能會有點生疏，但過去的經騐和教學技巧不會丟了的。