day前面加什麼介詞 two

Two days前面加什麼介詞，看應該在什麼場合下想表達什麼意思。 For two days表示在一段時間之內。 In two days是兩天之後，用於將來時。 For example， I will stay here for two days. He stayed in bei Jing for two days last year. He will be back in two days. We will go to Beijing in two days.