rusty

My French is a bit rusty since I haven't spoken it for five years.

(Chinese) 我的法语有点生疏了，因为我已经五年没说了。

The pianist felt rusty after the long summer break and needed hours of practice.

(Chinese) 钢琴家在漫长的暑假后感到手生，需要练习几个小时。

He cut his finger on a rusty nail sticking out of the old wooden fence.

(Chinese) 他的手指被旧木篱笆上凸出来的生锈铁钉划破了。

The abandoned bicycle had a rusty chain that would no longer move.

(Chinese) 那辆废弃自行车的链条生锈了，再也转不动了。