I don't remeber the age of his at which he won the prize.
在某个年龄, at the age of 20, 比如说. 因此, 用which 代替先行词age, 以at which 引导定语从句.
这句话,还可以这样说:
I don't remember at what age he won the prize.
英语翻译介词加关系代词等于关系副词 一定是介词加which代替when,那么那个介词该是什么?怎么能在句子中找到固定搭配
I don't remeber the age of his at which he won the prize.
在某个年龄, at the age of 20, 比如说. 因此, 用which 代替先行词age, 以at which 引导定语从句.
这句话,还可以这样说:
I don't remember at what age he won the prize.