请加菲猫和吴mm再来看下，还是 LINQ 的有关问题

请加菲猫和吴mm再来看下，还是 LINQ 的问题
假设有两个数组：
string[] keys = new string[] { "about, "book", "carry", "crazy", "good", "old are", "windows" };
string[] inputarray = new string[] { "how old are you", "it is about 3", "I have a book", "carry", "it's time out", "a big box", "books", "linux" };
我希望通过 LINQ 查询，得到 inputarray 里面包括 keys 的项。

上面的应该返回
{ "how old are you", "it is about 3", "I have a book", "carry" }

请问有什么好办法？

[解决办法]

C# code

void Main(){    string[] keys = new string[] { "about", "book", "carry", "crazy", "good", "old are", "windows" };string[] inputarray = new string[] { "how old are you", "it is about 3", "I have a book", "carry", "it's time out", "a big box", "books", "linux" };var query=from input in inputarray          from ip in input.Split()          let key=(from k in keys from k0 in k.Split() select k0)          where key.Contains(ip)          select input;          foreach(var q in query.Distinct())          Console.WriteLine( q);          /*         how old are you        it is about 3        I have a book        carry          */}
[解决办法]
var result=from p in inputarray
         from q in input
         let key=(from k in q.Split(' ') select k)
         where p.Contains(key)
         select p;