Psychologists still grindaway (sometimes at each other) at explaining what genius is, and where it comes from.
心理学家仍然在努力解释什么是天才，天才从何而来，有时候，他们还会为此争论不休。
2
Vacation. Getting away for the weekend provides a great respite from the grind of an intense week at work.
度假。周末外出度假可以给一周紧张的工作提供很好的喘息时间。
3
This was displayed in back-to-back league games when Giggs tore apart a Bolton side that hadn't conceded at home and then used all his experience to help United grind out a 1-0 win awayat Blackburn.