It is often said that before you die your life passes before your eyes. It is in fact true. It's called living.
信仰是即使在看不到整个阶梯的情况下也迈出第一步。
Adaptation is the key to survival in an era of climate uncertainty.
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。