We shall leave you to wrestle with the problem for a while, and when we return to it later you will see how much easier it is when you can put a name to the technique required.

• 我们该给你点时间尽力思考下这个问题，当我们稍后返回，你将会知道当你需要给这个打牌技巧起个名字时有多么的简单。