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关注：1
2013-05-23 12:21
求翻译：氟是人体中不可缺少的元素，适量的氟可以提高艰苦牙齿，提高牙齿抗酸能力是什么意思？ 待解决
 悬赏分：1
- 离问题结束还有
氟是人体中不可缺少的元素，适量的氟可以提高艰苦牙齿，提高牙齿抗酸能力
问题补充： |
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2013-05-23 12:21:38
Fluorine is an essential element in the human body, the right amount of fluoride can improve dental hard to improve the acid resistance of tooth
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2013-05-23 12:23:18
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2013-05-23 12:24:58
The fluorine is in the human body the essential element, the right amount fluorine may enhance the difficult tooth, sharpens the tooth acid resistance ability
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2013-05-23 12:26:38
Fluorine is the indispensable element in the body, the right amount of fluoride increases hard teeth, improve the ability of acid resistance of teeth
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2013-05-23 12:28:18
Fluorine is the indispensable element in the body, the right amount of fluoride increases hard teeth, improve the ability of acid resistance of teeth
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