久放不用的痕跡
兩個意思共用同一個畫面,只是一個長在金屬上、一個長在能力上:都是「太久沒動」的結果。
rusty, corroded metal · adjective · A2
If a piece of metal is rusty, it is covered in rust: the rough, red-brown layer that grows on iron or steel that has been left in water or wet air for a long time.
生鏽的