-> I wish 我希望
• I wish I was intelligent. 我希望我是聰明的
• I wish I could eat Kimchi.我希望我可以吃泡菜
• I wish I lived in Beijing.我希望我住在北京
-> If I were 如果我是
• If I were rich, I would travel around the world.如果我有錢 , 我會環遊世界
• If I were pretty, I would be a model.如果我"長的"漂亮 , 我會是一個模特兒
I add some words in Chinese to make the sentence better.