In the rusty red deserts of South Africa, steep-sided rocky hills called inselbergs rear up from the plains like the bones of the earth. 南非铁锈般红色的沙漠
There were large patches of rust on the car. 车上有大片锈斑。
The gate was old and badly rusted. 大门很旧，锈得厉害。
I haven't played the piano for ages — I may be a little rusty. 我很久没有弹钢琴，可能会有点生疏。