And there was this yellow bicycle chained to a tree.

有一辆黄色自行车用链子栓在树上。

I'm not sure if a bicycle chain would creak, but I guess it's possible that something made of metal that is put under a lot of pressure might also creak, making a high-pitched sound again.

我不确定自行车链条是否会吱吱作响，但我想金属制成的东西在承受很大压力后也可能会吱吱作响， 再次发出高音调的声音。