1 四级阅读长句 1. Currently, rules on using these devices are left up to individual airlines. [参考译文]目前，使用这类物品的有关规定完全由各航空公司来制定。 2. And although some airlines prohibit passengers from using such equipment during take-off and landing, most are reluctant to enforce a total ban, given that many passengers want to work during flights. [参考译文]尽管有些航空公司禁止乘客在飞机起飞和降落时使用这类物品，大多数航空公司由于考虑到很多乘客想在飞行过程中工作而不愿意实行全程禁止。 3. Surprisingly, since modern PR was largely an American invention, the U.S. leadership in public relations is being threatened by PR efforts in other countries. [参考译文]令人惊讶的是，既然现代公共关系主要是美国人的发明，美国在这方面的领导地位也就日益受到了奋力追赶的其他国家的威胁。 4. First, American as a whole tend to be fairly provincial and take more of an interest in local affairs. [参考译文]首先，从总体上说，美国人的眼光往往比较狭隘，更多的是对本地事物感兴趣。 5. Brazil has become one of the developing world‟s great successes at reducing population growth— but more by accident than design. [参考译文]巴西已成为世界上在降低人口增长率方面卓有成效的国家之一，但是与其说是通过人为计划，不如说是偶然因素使然。 6. Martine puts it down to, among other things, soap operas and installment plans introduced in the 1970s. [参考译文]在诸多因素当中，马丁把人口增长的降低归因于通俗电视连续剧和 70 年代引入的分期付款方案。 7. The changes have been mostly in terms of craftsmanship, mechanics and technology. It is universality of toys with regard to their development in all parts of the world and their persistence to the present that is amazing. [参考译文]其变化大多是体现在制作工艺、构造以及技术水平等方面。令人惊讶的是，玩具在世界各地的发展和延续具有普遍性。 8. Because toys can be generally regarded as a...
