C# list二維數組內部元素合並（linq 之zip）

最近碰到一個問題，原題如下：

List<List<string>> zipList = new List<List<string>>{
                new List<string>{"a","b","c","d"},
                new List<string>{"1","2","3","4"},
                new List<string>{"A","B","C","D"},
                new List<string>{"一","二","三","四"},

            };  需要返回的結果 a1A一，b2B二，c3C三，d4D四

一開始拿到這個題有點蒙，仔細看題后靈光一閃，其實這個題主要是考linq的zip方法，詳細方法如下：

List<string> resuList = new List<string>();
            List<List<string>> zipList = new List<List<string>>{
                new List<string>{"a","b","c","d"},
                new List<string>{"1","2","3","4"},
                new List<string>{"A","B","C","D"},
                new List<string>{"一","二","三","四"},

            };
            for (int i = 0; i < zipList.Count; i++)
            {
                if (i == 0)
                {
                    resuList = zipList[i];
                }
                else
                {
                    resuList = resuList.Zip(zipList[i], (first, second) => first + second).ToList();
                }
            }
            foreach (var item in resuList)
                Console.WriteLine(item);
            Console.Read();

　上面這個方法是我想到最簡潔的方法，或許還有更好的方法，歡迎大家指出，謝謝！