wild card
柯林斯词典
1. N-COUNT If you refer to someone or something as a wild card in a particular situation, you mean that they cause uncertainty because you do not know how they will behave. 未知因素
The wild card in the picture is eastern Europe. 局势中的未知因素在东欧。
2. N-COUNT A wildcard is a symbol such as * or ? used in some computing commands or searches in order to represent any character or range of characters. 通配符 (计算机指令中如*或?的符号，用于替代任一字符或系列字符)[计算机]
3. N-COUNT In card games, if a particular card is named as a wild card, the player who holds it may give it any value he chooses. 百搭牌 (牌戏中由持牌人决定牌值的牌)
Look. I have a straight of 3, 4, 6, 7 and the wild card for the 5. 看，我有连着的3，4，6，7， 还有一张百搭牌作5。
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wild card (also wildcard) (wild cards)
剑桥词典
wild card noun [C] (COMPUTING)
computing specializedin computers , a symbol that has no particular meaning of its own so that its space can be filled by any real character that is necessary
（计算机中的）通配符
The wild cards are represented here by asterisks . 这里通配符用星号来表示。
wild card noun [C] (COMPETITION)
someone who is allowed to take part in a competition , even though they have not achieved this in the usual way, for example by winning games
持外卡的选手
Phillips is hoping for a wild card entry to the championships . 菲利普斯希望得到外卡参加锦标赛。
wild card noun [C] (NOT KNOWN)
someone or something whose behaviour is sometimes unexpected
无法预言的人（或事物）
The wild card in this election is the Green Party - no one knows exactly how much support they will get. 本次选举中无法预料的是绿党——没人确切知道他们会获得多少支持。 返回 wild card