7. nonprofit adj.(商业)非赢利的

The fund of nonprofit organization is nontaxable.
不以盈利为目的的机构的资金是免税的。

8. implement vt.使生效，贯彻，执行

Knowing how to implement those changes is procedural knowledge.
知道如何实现那些改变是程序性的知识。

9. stray vi. 走失, 离群; 迷路

The child strayed away from home.
这孩子离家走失了。

10. bias n. 偏见，偏心，偏袒；vt.使倾向于

They are accusing the teacher of political bias in his marking.
他们在指控那名教师打分数有政治偏见。

Many parents are biased against popular music.
许多父母对流行音乐有偏见。

11. peripheral adj.非本质的；非主要的，次要的，外围的

The men are somewhat peripheral to this society.
相对于这个社会来说, 人似乎无足轻重。

12. so-and-so n.某某人，某某