11. entertainment n. 娱乐;招待，款待

　　There are few entertainments in that town.

　　那个镇上几乎没有娱乐设施。

　　This hotel is famous for its entertainment.

　　这家旅馆以殷勤待客著称。

　　12. enthusiasm n. 热情，热心

　　She seemed lacking in enthusiasm when we were talking about that film.

　　我们谈论那部电影时,她看来好像没多大热情。

　　His enthusiasm made everyone else interested.

　　他的热心激发了大家的兴致。

　　13. entry n. 进入，入口处;参赛的人(或物)

　　He pretended not to observe our entry.

　　他装作没有看见我们进来。

　　You can leave your umbrella in the entry.

　　雨伞可放在入口处。

　　14. environment n. 环境

　　She is not used to the new environment.

　　她对新环境不习惯。

　　15. episode n. 插曲，片段

　　The episode of this film sounds good.

　　这部电影的插曲很好听。

　　That's an episode in my life I'd rather forget!

　　那是我一生中宁愿忘记的经历!

　　16. equation n. 方程(式)

　　What does x represent in this equation?

　　这个方程式中的x代表什么?

　　17. restrain vt. 阻止，抑制

　　Shame may restrain what the law does not prohibit.

　　羞耻或许能阻止法律所不能禁止之事。

　　She tried to restrain her sobs.

　　她设法抑制住自己的悲泣。

　　18. restraint n. 抑制，限制

　　Nobody could count on his restraint or rationality.

　　谁也不能指望他会克制或讲道理的态度。

　　There is still need for profit restraint.

　　现在仍有必要限制利润。

　　19. resume v. (中断后)重新开始

　　We resumed our work after a rest.

　　休息之后我们重新开始工作。

　　20. severe a. 严重的

　　He's suffering from severe mental disorder.

　　他患有严重的精神病。