法律禁止对健康家畜使用抗生素

短语讲解：

1. American health advocates have filed a lawsuit against the U.S. food regulatory agency to stop a practice they believe is contributing to the rise of antibiotic-resistant infections worldwide.

contribute to促成
例句：Smoking is a major factor contribute to cancer.
吸烟是致癌的一个重要因素。

2. Farmers started adding small doses of antibiotics to their livestock feed around 50 years ago, after scientists discovered the drugs improved the animals' growth.

add to增加
例句：This paper will add to her reputation.
这些论文将会增加她的名声。

3. Roach's group and four other major environmental and consumer groups are suing the FDA to ban the use of two common antibiotics at levels below what is used to treat a sick animal.

be used to do被用来做…
例句：Charcoal is used to filter water.
木炭是用来过滤水的。

4. Last June, the agency did recommend that livestock producers phase out the use of antibiotics to promote growth.

phase out逐步淘汰, 逐步结束
例句：The factory has already phased out a batch of production equipment.
这家工厂已经淘汰了一批生产设备。

5. As far as we can tell, all they were trying to do was kindly ask the industry to make changes.

as far as据…, 就…
例句：As far as I know, he will be away for three months.
据我所知, 他将离开三个月。

6. Sicker animals result in greater contamination on the meat.

result in 导致,结果是
例句：The flood resulted in a considerable reduction in production.
这次水灾造成相当大的减产。

7. So, the way to control pathogens on the farm so that they don't transfer through the food chain is to make sure we have healthy farm animals.

so that结果, 以致, 以便
例句：Everyone lent a hand, so that the work was finished ahead of schedule.
每个人都帮了忙, 所以工作提前完成了。
food chain食物链

8. But consumers are growing concerned about the effects these drugs might be having on the food they eat.

have on穿着, 戴着
例句：Mary had on her new dress.
玛丽穿着一件新连衣裙。