问题在于他们常常用错了抗生素，要么把它们用于补救不合理的农业做法 — — 如过度拥挤的工厂化农场让疾病更加容易传播 — — 要么把它们用于加快生长和降低生产成本。
The problem is that they commonly misuse antibiotics either to compensate for poor agricultural practices – such as overcrowding on factory farms, which encourages the spread of disease – or to accelerate growth and reduce production costs.