| 1. | His field of expertise was steroids .
他的专业领域是甾族化合物。 |
| 2. | The use of steroids is controversial .
激素的应用是有争议的。 |
| 3. | Testosterone is an androgen or male steroid hormone .
睾丸甾酮是一种雄性激素或雄性类固醇激素。 |
| 4. | He lists three types of steroid sex hormones that function in mammals .
他列举在哺乳动物中起作用的三种类固醇性激素。 |
| 5. | All steroids contain a skeleton of 17 carbon atoms organized into four rings .
所有的类固醇都含有排列成四个环的17个碳原子的骨架。 |
| 6. | All the sex hormones, e. g. estrogens, progesterone, and testosterone, are steroids .
所有的性激素，例如雌激素，黄体酮和睾酮都是类固醇。 |
| 7. | All the sex hormones, e. g. estrogens, progesterone, and testosterone, are steroids .
所有的性激素，例如雌激素、黄体酮和睾酮都是类固酮。 |
| 8. | All the sex hormones, e. g. estrogens, progesterone, and testosterone, are steroids .
所有的性激素，例如雌激素、黄体酮和酮都是类固醇。 |
| 9. | We shall concentrate our attention on three groups: the fats, the phospholipids, and the steroids .
我们着重注意以下三类：脂肪、磷脂和类固醇化合物。 |
| 10. | This result is obtained mainly by consideration of the four-ring molecules derived from steroids .
这个结果主要是通过从甾族化合物中取得的四环分子得到的。 |
