When you borrow a man's car, always return it with a tank of gas.

元素若按其原子量排列，会呈现出性质的周期性。

教育是实现可持续捕捞和养殖实践的第一步。

思想即是感恩。

译文：花开花落已两载，看着盛开的花，想到两年未曾回家，就不免伤心落泪。小船还系在岸边，虽然我不能东归，飘零在外的我，心却长系故园。

The world is full of people who will help you manufacture tornados so you can later claim to have survived them.

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))。