trick up

基本解释

zsh has a further trick up its sleeve with respect to completion.
zsh 在完成功能方面做了进一步的优化。
Why You Can't Kill Him: He’s a wizened wizard with many a trick up his (rather copious) sleeves.
为何杀不死：一个形容枯槁的巫师，袖子里藏了不少把戏。
But how do we know people aren't happier with more money? Well, psychologists have a trick up their sleeves.
诺贝尔获奖者心理学家卡恩曼和他的同事提出这样的观点：人们不断的认为金钱可以使他们更加幸福的原因是：追逐金钱的过程可以导致一般的成就感。

"Oh,whatever.I guess so. I'll pick you up at Wallace's house at about five-thirty, so you can get ready for trick or treating.
So, that means he's got to make his line unless he comes up with some clever trick, the same size as the other guy.
所以,这意味着除非他想出别的好点子,否则他就必须使他那一排的规模,和对方的一样
耶鲁公开课 - 古希腊历史简介课程节选

It's the least cumbersome of the charging options and it's got a neat trick up its sleeve.
ENGADGET: Nokia adds Qi wireless charging tech to new Lumia phones, we go hands-on
But the company did keep at least one trick up its sleeve: a tablet with a built-in palm reader.
ENGADGET