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))。
The light constantly changes, and that alters the atmosphere and beauty of things every minute.
Running a business requires social responsibility. We must not only pursue economic benefits but also pay attention to food safety and environmental protection.
工作的乐趣在于一个词——卓越。知道如何做好一件事就是享受它。
Technology alone won’t save our oceans; it takes a commitment to ethics and ecology.
我害怕自己变得平庸。而我并不平庸。我不平庸。
Language is a virus from outer space.
