131. Large and small enterprises differ in that the former usually involves conglomerates and the latter private individuals .

　　大企业和小企业的区别在于前者通常涉及联合大企业，后者涉及私营的个人。

　　132. Both automobiles and bicycles offer a convenient means of public conveyance , with one of the marked differences between the two centered on pollution caused by the former .

　　汽车和自行车都提供公共运输的便利方式，两者的显著区别之一在于前者引起污染。

　　133. Alcohol and tobacco are both highly addictive substances . However , unlike tobacco , which is known to cause cancer , studies indicate that alcohol does offer some health benefits when consumed in moderation .

　　酒和烟都是很容易上瘾的东西。但是，研究显示，与公认为引起癌症的烟不同，酒如果适量饮用确实对健康有益。

　　134. One man's treasure is another man's junk .

　　一个人的宝贝对于另一个人来说是垃圾。

　　135. AIDS is no longer one of the Top 10 American killers , but the same cannot be said for many countries .

　　艾滋病不再是美国的十大杀手之一，但许多国家的情况并非如此。

(责任编辑：田学江)