[译] 这是我长期以来想要去的地方。
[误] This is a place where I've long wanted to visit.

[正] This is a place (which) I've long wanted to visit.
[注] 关系代词 which 在定语从句中做 visit 的宾语，也可省略。关系副词 where 在定语从句中只能充当状语，意思和 there 差不多，如果在从句中不是充当状语就不能用它。例如：They work in a factory which makes radio parts(或 where radio parts are made.) 他们在一家制造无线电零件的工厂工作。