多年来，我一直搞不清楚蔬菜到底出了什么问题。我当然知道，大多数蔬菜要想享用它们最鲜美的味道，必须新鲜釆摘并且立即烹调。

多年来，我一直搞不清楚蔬菜到底出了什么问题。我当然知道，大多数蔬菜要想享用它们最鲜美的味道，必须新鲜釆摘并且立即烹调。
【正确答案】：For years, I couldn’t figure out what had happened to vegetables. I knew, of course, that most vegetables, to be enjoyed in their full deliciousness, must be picked fresh and cooked at once.