I'm sorry. The law says my mom has 72 hours to change her mind. She's exercising that option.

很抱歉。法律规定我母亲72小时内可以反悔。她只是行使权力而已。

The researchers proposed that you first come back to the gym by initially limiting your exercise options to a particular type.

研究人员建议，回到健身房后，首先将自己的运动选择限制在一种特定的类型上。

But now, in order to exercise these options, you gotta have a little bit of bravery.

但现在， 为了行使这些选择，你必须有一点勇气。

If they then rise in price, the buyer will exercise the option to purchase them at the below-market value.

如果价格上涨，买方将行使选择权以低于市场的价格购买它们。

If they fall, the investor takes the hit as the option will not be exercised, meaning they will keep the shares and their losses.

如果股价下跌，投资者将受到打击，因为期权将不会被行使，这意味着他们将保留股票并承担损失。