慢速英语:Major Chicken Producer to Stop Using Antibiotics

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短语讲解：

1. “As a result of our efforts, only a very small percentage of our chicken flocks receive human antibiotics today.”

as a result of 由于…的结果;起因
例句：Market mechanisms have lost their appeal as a result of the financial crisis.
由于金融危机，市场调节作用也已失去了他们的吸引力。

2. He says the company will stop giving its birds antibiotics by the end of 2017.

by the end of 到…为止
例句：Microsoft expects the deal to close by the end of 2011.
微软预计这桩交易将于2011年底前完成。

3. While the use of antibiotics in birds and livestock is decreasing in the U.S. and Europe, it is expected to increase in the developing world.

be expected to 被期待做某事; 有望做某事; 期许
例句：That could hardly be expected to last.
这很难预计将持续多久。