wild card

英 [ˈwaɪld kɑːd]

美 [ˈwaɪld kɑːrd]

n.  (由持牌人自由决定牌值的)百搭派，变牌; “百搭”式参赛，“百搭”式参赛选手，“外卡”参赛，“外卡”选手(指没有正常参赛资格而参赛); 通配符

牛津词典

noun

• （由持牌人自由决定牌值的）百搭派，变牌
  a card that has no value of its own and takes the value of any card that the player chooses
• “百搭”式参赛，“百搭”式参赛选手，“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

柯林斯词典

• N-COUNT 未知数;未知因素
  If you refer to someone or something as awild cardin a particular situation, you mean that they cause uncertainty because you do not know how they will behave.
  1. The wild card in the picture is Eastern Europe.
     整个局势中的变数是东欧。
• N-COUNT （给予没有正常参赛资格的选手准其参加比赛的）“外卡”;“外卡”选手
  If a sports player is given awild cardfor a particular competition, they are allowed to play in it, although they have not qualified for it in the usual way. You can also usewild cardto refer to a player who enters a competition in this way.
  1. Andre Agassi accepted a wild card to play in the Stockholm Open.
     安德烈·阿加西持外卡参加了斯德哥尔摩公开赛。
• (用于代替任何字符或字符串的)通配符
  Awildcardis a symbol such as * or ? which is used in some computing commands or searches in order to represent any character or range of characters.

英英释义

noun

• a playing card whose value can be determined by the person who holds it
• an unpredictable factor
  1. the weather was a wild card

双语例句

• She's our maverick, our wild card.
  她是我们的独行侠，我们的王牌。
• The weather can be a wild card, too.
  天气也可以是一张百搭牌。
• The search will run as if a wild card is appended to the search term.
  搜索将会按照如同对搜索条件增加了一个通配符一样运行。
• Another wild card is whether financial firms will bend to public and political pressure to rein in pay.
  另外一个不确定因素是，金融企业是否会向公众和政治压力低头而限薪。
• A major wild card is foreign exchange rates, which have been working against Japanese producers for months.
  一个重大的未知因素是汇率，数月以来，汇率因素一直不利于日本汽车厂商。
• Another wild card for the dollar will be trends in global capital flows.
  影响美元的另一个可能因素将是全球资本流动的趋势。
• One wild card is the impact of the forthcoming midterm elections.
  即将到来的中期选举的影响也是一个变数。
• The wild card in the picture is Eastern Europe.
  整个局势中的变数是东欧。
• The advertisement is still a wild card.
  这个广告的成功与否还是个未知数。
• One wild card is to propose to her in front of the whole class.
  当着全班的面向她求婚，这会是最厉害的一招。