What has heads and tails but no legs?

什么东西有头有尾但是没有腿?。

youdao

Maybe we have horns on our heads and tails dragging between our legs.

也许我们的头上长着角，后面还托着条尾巴。

youdao

Fish heads and tails can be cooked with pickled cabbage into a tasty soup.

腌制剩下的鱼头和鱼尾加上酸菜，可以做成美味的酸菜鱼汤。

youdao

You might say the probability that you toss a coin and it comes up heads is a half, because it's equally likely to be heads and tails.

如果你抛一枚硬币,正面向上的概率一定是50%,因为正反哪一面向上的可能性是相同的

耶鲁公开课 - 金融市场课程节选

For example, the experiment could be tossing a coin, I will call the outcome heads the number one, and I'll call the outcome tails the number zero, so I've just defined a random variable.

比方说,抛硬币的试验,我将正面向上的结果对应数字1,反面向上的结果对应数字0,这样我就定义了一个随机变量

耶鲁公开课 - 金融市场课程节选

If he flips the coin, it will still end up both heads and tails.

ECONOMIST: Quantum computing

Hill flipped a coin 100, 000 times to prove that heads and tails would come up an approximately equal number of times.

WSJ: Mars One and the Scientific Embrace of Suffering

He can use his turn to put the coin into the peculiarly quantum state of being both heads and tails at once.

ECONOMIST: Quantum computing