对民主的爱就是对平等的爱。
"The greatest journeys are not measured in miles, but in understanding."
我喜欢练习。当我不在比赛时,我就在练习。
I'm not upset that you lied to me, I'm upset that from now on I can't believe you.
相关系数的可能误差不是一个固定的量,而是取决于样本的大小。