看具体的句子才能判断. 不过这种说法是可以的. 如：Last year I lived in the city in which my parents worked twenty years ago. 去年我住在我爸妈二十年前所工作过的那个城市. 其中定语从句：(in which) my parents worked twenty years ago = (where) my parents worked twenty years ago = my parents worked (in which) twenty years ago = my parents worked (in the city) twenty years ago
