想確認我的句子對不對

[林大人]

某教學片上的例題
EX:我們的午餐吃的三明治不好吃
教學片上的是
The sandwiches that we ate for lunch were not delicious.
我自己寫的則是
Our lunch ate the sandwiches which were not delicious.
請問我自己的句子對不對，如果有錯是錯在哪裡?

[Dunchee MA]

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[林大人]

了解感謝