“美白牙膏”英语怎么说
摘要:近日，上海市工商局披露，因构成虚假广告，佳洁士双效炫白牙膏被处罚603万元。那么我们日常该如何保护牙齿呢?你知道怎么用英语表达吗?
Though heavily advertised, the whitening toothpastes only partially whiten teeth and don't provide a complete remedy.
Very few whitening toothpastes have undergone any type of clinical trial, and ones that are too abrasive can damage teeth or make them very sensitive.
It's necessary to brush with a soft-bristled toothbrush and use desensitizing toothpaste containing fluoride and either potassium nitrate or strontium chloride, because both help block the transmission of sensations from the tooth to the nerve.
If possible, purchase an electric toothbrush to remove stains and plaque more efficiently and to keep those teeth sparkling white.
虽然美白牙膏的广告很多，但它们通常只具备部分的美白功效而没有提供彻底的美白方案。
很少有美白牙膏经过任何形式的临床试验，有些美白牙膏摩擦剂含量过多，会伤害你的牙齿或让你的牙齿变得过分敏感。
用软毛牙刷和含有氟化物，硝酸钾或氯化锶的脱敏牙膏来刷牙很有必要，因为这两种成份都可以阻止敏感从牙齿传递到神经。
如有可能，那就购买一把电动牙刷吧，这样更有效地去除污垢和牙菌斑，让牙齿散发出亮白光采。
【讲解】
文中的whitening toothpaste就是“美白牙膏”的意思，其中toothpaste(牙膏)是合成词，由tooth(牙齿)和paste(膏，糊)组合而成，如：a tube of toothpaste(一支牙膏)，相关词汇还有：toothbrush(牙刷)，toothpick(牙签)，mouthwash(漱口水)等。
最后一段中的stain作名词，意为“污垢，污斑”，如：The stain on his shirt is difficult to clean off.(他衬衣上的污点很难去除掉。)
