c# - Need more details on Enumerable.Aggregate function -

can me understand,

       words.aggregate((workingsentence, next) => + next + " " + workingsentence);    

from below code snippet? , great if explain me achive in c# 1.1.

(snippet ms)-

        string sentence = "the quick brown fox jumps on lazy dog";         // split string individual words.         string[] words = sentence.split(' ');         // prepend each word beginning of          // new sentence reverse word order.         string reversed = words.aggregate((workingsentence, next) =>                                               next + " " + workingsentence);         console.writeline(reversed);         // code produces following output:         //         // dog lazy on jumps fox brown quick 

the aggregate part of example translates this:

string workingsentence = null; bool firstelement = true; foreach (string next in words) {     if (firstelement)     {         workingsentence = next;         firstelement = false;     }     else     {         workingsentence = next + " " + workingsentence;     } } string reversed = workingsentence; 

the workingsentence variable accumulator updated on each iteration of loop applying function existing accumulator value , current element of sequence; performed lambda in example , body of foreach loop in example.