如果你投掷硬币两次，第一次实验的结果并不影响第二次，我们说他们是相互独立的，他们之间彼此没有联系。

If you toss a coin twice and the first experiment doesn't influence the second, we say they're independent and there's no relation between the two.

他投掷硬币来做决定。

He tosses a coin to make a decision.

投掷硬币直到出现反面。这次攻击造成的伤害为30点乘以硬币正面个数。

Flip a coin until you get tails. This attack does 30 damage for each heads.