大家好，最近聽到一個句子是 When I was a kid, baling a field of hay that big would have taken a really long time and it would have all been done with manual labor. 他是提到現在收割打包很快，但以前要花很多時間，而且要全靠人工 想請問大家，他後面那邊 (1)接would have pp 跟 接簡單過去式 聽起來的感覺差在哪呢 (2)後面用簡單過去式也可以嗎? 謝謝