sleeve ·phrase (IDIOM)
Definition: to have a secret plan Level: C2
他似乎总是另有秘密计划。
He always seems to ___have another secret plan ___up his ___sleeve.
好的老师通常备有一些吸引人的活动来抓住学生的注意力。
Good teachers often ___have a few engaging activities ___up ___their ___sleeve to capture students' attention.
在紧张的谈判中，我们怀疑竞争对手藏着一个重大的让步作为后手。
During the tense negotiations, we suspected our competitors ___had a major concession ___up ___their ___sleeve.