tā / běn / lái / yào / qù / Shàng / hǎi / què / yīn / chā / yáng / cuò / de / lái / dào / le / Chéng / dū

他本来要去上海，却阴差阳错地来到了成都。

He was originally going to Shanghai, but due to an unexpected turn of events, he ended up in Chengdu.