hole card
短语[牌戏]牌面朝下发出的牌; 王牌；掌握在手中必要时才加以利用的优势, 隐藏不露的优势, 潜藏的优势
词形变化
hole cards
复数
hole cards
释义与例句
n.
-
1.
A playing card, dealt face down, that the holder need not reveal until the showdown.
游戏 -
2.
Something held in reserve, or concealed, until it is useful.
比喻