研究团队将1万名用户的评论以1年为期进行划分，一年前的言论作为查询集，一年后的言论作为候选池。
Why this gap matters more in longevity
，这一点在搜狗输入法下载中也有详细论述
Washington endorsed Pakistan’s “right to defend itself” after it bombed major cities across Afghanistan amid heightened tensions between the two hostile neighbours.，这一点在谷歌浏览器【最新下载地址】中也有详细论述
A world with two lines removed. Now there are two ways (red and blue) for a leash to get tangled up and “all their combinations” (there are two generators of the fundamental group of this space)