The real wild card is shale.

真正的不确定性因素是页岩。

It serves as a " wild card" in the game.

这是游戏中的一张“外卡”。

I think that's part of the wild card.

我认为这是外卡赛的一部分。

Over and over again, the nature deals us the wild cards.

大自然总是这样对待我们，不按常理出牌。

I guess you do. I was your wild card, huh?

我想你是真懂，当年你也觉得我是未知数吧？

Her ranking drifted to 133 but she entered Wimbledon this year on a wild card.

因此她的世界排名滑落到了133，但是，此次郑洁倚靠外卡进入温布尔登。

" The real wild card for the U.S. and many other developed countries is immigration."

“对美国和其他许多发达国家来说，真正的不确定因素是移民。”

Lawrence Creatura, portfolio manager for Federated Investors, says the Syrian conflict is a wild card.

联合投资公司的投资组合经理劳伦斯·克雷亚图拉表示叙利亚冲突是个未知因素。

Jack is too much of a wild card to get a place on our team.

杰克是个未知数，他不太可能在我们队中获得一席之地。

I'll use the wild card as a king, so now I have four kings.

我将外卡作为k使用，那么我就有4张K。