地道美语学单词：up someone's sleeve
up someone's sleeve千万不要解释为"在谁的袖子上",Up someone's sleeve是指某人的秘密。
例如：
...if there were no secret visit up the Administration's sleeve ....
要是当局不进行秘密访问，那才是奇怪了。
People dislike those who often have something up their sleeve.
人们不太喜欢那种什么事都要保密的人。
The wife has something up her sleeve for his birthday party.
一个妻子为丈夫举行生日聚会而事先不告诉他，这丈夫当然会非常高兴。
这个词组你学会了吗？