21-09-17 当一个句子中的主语与宾语一致时，宾语则可以用反身代词。其中，第一人称和第二人称的反身代词是由形容词性物主代词 my、your、our 等加上 -self 或 -selves 组成的。比如：myself、yourself、yourselves、ourselves。第三人称的反身代词则由人称代词 her、him、them...

15-04-28 A study from the Texas AM Health Science Center School of Public Health finds students with standing desks are more attentive than their seated counterparts. In fact, preliminary results show 12 percent greater on-task engagement in classrooms with...