核心问题
I substituted your name for mine on the list.
我一直记不住 substitute A for B 到底是谁代替谁。
词典解答
有两个方法可以很容易地记住 substitute A for B 所表达的意义。一是记住 for 后面的成分总是“被代替者”；二是记住 substitute A for B 与 replace A with B 所表达的关系恰好相反；前者是用 A 代替 B，后者则是用 B 代替 A。
请翻译下面的句子：
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She substituted a fake diamond for the original.
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You are to choose the one word or phrase that best keeps the meaning of the original sentence if it is substituted for the underlined word or phrase. (TOEFL)
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A new book was substituted for the one that had been lost. (RBE)
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We have replaced slave labour with (by) machines. (LDCE)