1·Many scientists and experts warn that rampant use of antibiotics in animal feed, like penicillin and tetracycline, will breed an epidemic that medicine has no defense against.
许多科学家和专家警告说，在动物饲料中滥用抗生素，如青霉素、四环素，会滋生流行病，而这种流行病是没有医药可以防御的。
2·And this bone extract also matched the chemical signature of tetracycline — evidence that the antibiotic was built into the kid's bones as he grew.
而骨骼提取物也符合四环素等化学特征——这一证据表明这种抗生素是在儿童成长过程中沉积于骨骼里的。
3·In 1980, a scientist looking at bone fragments under an ultraviolet microscope noticed the bones were glowing green-a hallmark of the antibiotic tetracycline.
1980年，一位科学家在紫外线显微镜下观察了骨头碎片，注意到骨头发出绿光——这是含有抗菌四环素的特征。
4·To get to the bottom of this, a chemist recently took bone from the mummy of a Nubian child and dissolved it in hydrogen fluoride, a nasty acid that helps extract tetracycline.
最近，一名化学家提取了一个努比亚幼儿木乃伊的骨头，在深入底层的过程中，将它融化泡入了一种肮脏的氢氧化物——酸中，有助于提取其中的四环素。
5·No amount of cleaning will remove the severe staining left by tetracycline or systemic disease because these pigments lie inside the tooth; you'll have to take more aggressive measures against these.
不过洗牙次数再多也不能去除由于四环素或系统性疾病导致的牙齿深度着色，因为这些色素已进入你的牙齿内部，你需要采取更加积极地措施来对付它们。