A team of two should get the job done twice as fast, right? Well...it's not that simple. The more members you have on a team, the more work ... ... <看更多>

The words people and persons can both be used as the plural of person, ... "there were only about ten people"; "several thousand people have been rehoused". ... <看更多>

nature, astronomer | Nature's 10: A trail-blazing astronomer, a climate revolutionary and a transplant pioneer are some of the people who ... ... <看更多>