实际上，使用天然卫生保健品有很多让人信服的理由。
There are actually many convincing reasons to use natural products.
一些人相信英语会流传下去，因为它有一个天然优势：容易学习。
Some believe English will survive because it has a natural advantage: it is easy to learn.
天然脂肪是不会让人肥胖的！
相反的，摄入太少的的天然脂肪反而会让人发胖。
On the contrary, eating too little natural fat tends to make people fat.
一个人可以通过不浪费天然气而做出改变。
当然，这样的实验不可能把人当做实验对象。但是，有一致的天然发生的案例。
Such experiments cannot, of course, be done on people, but something similar occurs naturally.
有些人过敏的天然香精油。
人能征服天然。
“夜明珠”是在黑暗中，人眼能明视的，天然的、能自行发光的珠宝。
"Pearl" is in the darkness, the human eye to bright, natural, self luminous jewelry.
美丽的年轻人是天然。
创新性是人的本性中天然而合理的要求。
Creativity is a natural and reasonable demand of human nature.
人血清可用于需要天然培养基的细胞培养。
The Human serum is often used in the cell culture essential for natural culture medium.
还有些人则声称，美国只需生产更多的石油和天然气。
Yet others claim that America simply needs to produce more oil and gas.
还有些人则声称，美国只需生产更多的石油和天然气。
Yet others claim that America simply needs to produce more oil and gas.
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