1.countless a.数不尽的,无数的

例句：We have countless reasons against his plan.
      我们有举不胜举的理由反对他的计划。

2.loosely ad.松弛地,宽松地,不紧

例句：The article is loosely organized.
      文章结构松散。

3.intensity n.强烈,剧烈;强度

例句：The poem showed great intensity of feeling.
      这首诗表现出强烈的感情。

4.observation n.观察,观测,了望,监视,注意

例句：Aside from observation, my primary source of knowledge was my education.
      除了实际观察以外，我的主要知识来源是我接受的教育。

5.inventiveness n.发明的才能

例句：a novel devoid of wit and inventiveness.
      一部缺乏创意和情趣的小说

6.costly a.昂贵的,豪华的,价值高的

例句：It would be too costly to repair the car.
      修理这辆汽车要花很多钱。

1.Shakespeare became a well-known writer during a golden age of theater. His years of hard work paid off.

pay off还清(债务等)付清,报复,赢利

例句：Next he undertook to pay off the debts.
      然后他同意负责偿还债务。

      The investor believes that his investment will pay off handsomely soon.
      这个投资者相信他的投资不久会有相当大的收益。

2.Without this important publication, eighteen of Shakespeare's plays would have been lost.

Without虚拟语气

非真实条件句中的条件从句有时不表示出来，只暗含在短语或上下文中，这种句子叫做储蓄条件句。常见的有but,for ,without等引导的短语，以及or, or else, otherwise, but 等后面的分句。
例：But for your help we couldn’t have succeeded in the experiment.
如果没有你的帮助，我们的实验室是不会成功的。
例：We could have done better under more favourable conditions.
在更有利的条件下，我们能够做得更好些。