难句突破：

(1)   Fortunately for Tony and his peers, their rivals and the victims of crime cannot tell if their guns work any better than they can.

[主体句式] Their rivals and the victims cannot tell...

[结构分析] 这是一个简单句，前面的介词短语做句子的状语, any better than they can后面省略了tell，也是做句子的状语。

[句子译文]幸运的是，对于托尼还有和他一样的人，他们的敌人还有那些受害人也比他们强不了多少，并不知道他们的枪能不能用。

(2)   A thin market must rely on advertising or a centralised exchange: eBay, for example, has dedicated pages matching sellers of imitation pearl pins or Annette Funicello bears to the few, scattered buyers that can be found.

[主体句式] A thin market must rely on...: eBay has dedicated...

[结构分析]这是一个简单句，后面用来解释整个句子的从句中，matching...组成的现在分词短语做前面pages的定语，而后面有一个that引导的定语从句修饰buyers。

[句子译文] 一个狭窄的市场要依赖于广告或是统一的交换。比如易趣专门设出几页让那些卖假珍珠针饰的商家或Annette Funicello熊的商家和所能找到的极少的、分布在各地的买家进行配对。