单词wild card
un.: 通配符
网络: 外卡；万能符
（由持牌人自由决定牌值的）百搭牌，变牌:
a card that has no value of its own and takes the value of any card that the player chooses
“外卡”参赛，“外卡”选手（指没有正常参赛资格而参赛）:
an opportunity for sb to play in a competition when they have not qualified in the usual way; a player who enters a competition in this way
通配符:
a symbol that has no meaning of its own and can represent any letter or number
难以预测的人（或事物）；未知因素；未知数:
a person or thing whose behaviour or effect is difficult to predict
通配符
However, on Tuesday he gave a straight "Yes" to a question about whether he would accept a wild card.
但是，在周二，当被问到是否接受外卡时候，他很坦率地回答“是的”。
And while Mr. Huang was a wild card, Bain knew it had the support of the new chairman, Mr. Chen, as well as the board.
虽然黄光裕是一张未知牌，但贝恩知道有新任主席陈晓及董事会的支持。
S. oil inventory data, due out Wednesday from the Department of Energy, also is something of a wild card.
美国能源部将于周三公布石油库存数据，这也可能给市场带来变数。
"Mr. Mendoza was not just a wild-card crazy man, " said Mr. Fink. "In a society without recourse for justice, people will do crazy things. "
芬克说，门德萨不仅仅是一个不按常理出牌的疯子；在一个无法寄望于司法的社会，人们就会做出疯狂的事。
They qualified as one of the wild card teams so the Saints will have to open defense of their title in Seattle instead of at home.
他们是外卡队伍之一，因此要奔赴西雅图而不是坐镇主场捍卫球队的荣誉。
A playing CARD, usually printed with a picture of a jester, used in certain games as the highest - ranking CARD or as a wild CARD.
纸牌中之王牌通常印有逗乐小丑图画的纸牌，在某些游戏中用作最大王牌或百搭牌
First-time Riesling drinkers may find this wine a bit of a wild card.
初次品尝雷司令葡萄酒（Riesling）的人可能会觉得，这种酒有那么一点儿难以捉摸。
Of course, the wild-card element in Elaine"s look was that Ms. Louis-Dreyfus was pregnant twice during the years the show was shot.
当然，“伊莲”风格的百搭性还体现在刘易斯-德雷福斯曾在拍摄剧集的过程中两次怀孕。
I thought I could count on my mother for sympathy, but she"s a wild card in any equation, including the politics of a China boycott.
原本我还指望有妈妈的同情，但现在她也没指望了，包括抵制中国制造。
In the second case of we"ve used a special wild card pattern to match a List of any size, even zero elements, and any element values.
在第二个case里我们使用了一个特殊的通配符来匹配一个任意大小的List，甚至0个元素，任何元素的值都行。