have sth in one's sleeve

have sth in one's sleeve是什么意思、have sth in one's sleeve怎么读
暗中已有应急的打算/计划/应急办法, 心中有妙计, 锦囊妙计

have sth in one's sleeve汉语翻译

暗中已有应急的打算/计划/应急办法, 心中有妙计, 锦囊妙计