var
 Response: TStringStream;
begin
 Memo1.Text := '';

 Response := TStringStream.Create('');
 try
   IdHTTP1.Get('https://translate.google.com/#en/ru/aback', Response);

   if IdHTTP1.ResponseCode = 200 then
   begin
     Memo1.Text := Response.DataString;
   end;
 finally
   Response.Free;
 end;