女性的身体在历史上一直是一个战场。
The female body has been a battleground throughout history.
I'm not a person who likes to be behind.
The stock market is the only market where things go on sale and everyone runs out of the store.
从n对观测值的样本中获得的相关系数的可能误差是sqrt((1-r²)/(n-2))。