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可以這樣省略，但不宜將to eat tomorrow理解為what的定語，這里是“連接代詞+不定式”結(jié)構(gòu)作賓語。　　

關(guān)于“連接代詞+不定式”結(jié)構(gòu)作賓語的例子很多。如：　　

Each man knows what to do. = Each man knows what she should do. 每一個 人都知道要做什么。　　

I didn’t know when to switch the machine off. = I didn’t know when I could switch the machine off. 我不知道什么時候關(guān)掉機器。　　

I don’t really know what to say to you about this. = I don’t really know what I can say to you about this. 我真的不知道關(guān)于這事我該對你說些什么。