新聞來源: http://us.cnn.com/2011/09/15/health/living-well/dental-x-rays/index.html?hpt=he_c2
今日單字: dental [adj.] = 牙科的、牙齒的
(一) 今日單字的其他意思 及 變化
dental [adj.]
1. 齒音的 ( e.g. T and d are dental consonants. )
dentist [n.]
1. 牙科醫生、牙醫
dentistry [n.]
1. 牙科醫學、牙醫業 ( e.g. You can get a Doctor of Dentistry degree in five years. )
denture [n.]
1. 假牙 ( e.g. Even if you wear dentures, you should still take good care of your mouth. )
dentate [adj.]
1. 齒狀的 ( e.g. Some maple leaves have dentate edges. )
dentation [n.]
1. 齒狀
(二) 相關字及片語
牙齒保健很重要，今天就來講幾個相關的字吧。
1. Braces = 牙齒矯正器、牙套 ( e.g. Getting braces is expensive and painful. )
2. Orthodontist = 矯正牙科醫生、齒顎矯正醫生
3. Cavity = 蛀牙、牙的蛀洞 ( e.g. I have a cavity, so I need to see the dentist today. )
4. Dental filling = 補牙的充填材料
5. Root canal treatment = 根管治療
6. Dental crown = 假牙牙冠、單顆式固定假牙
7. Dental bridge = 牙橋式固定假牙
8. Dental implant = 植牙
9. Dental floss = 牙線
(三) 延伸討論
Do you worry about radiation when you get a dental x-ray ?
I don't really think about it.
The pros of getting an x-ray outweigh the cons.
There are things that just can't be seen by the naked eye.
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