Burton Edelstein of Columbia University says people should stick with the basics of good oral hygiene.
哥伦比亚大学的伯顿·埃德尔斯坦说人们应该保持基本良好的口腔卫生。
Edelstein speculates this might be one reason why extraterrestrial civilisations haven't paid us a visit.
Edelstein推测这也可能是外星文明还没有造访地球的一个原因。
Burton Edelstein: Control of the diet, the regular use of fluoride toothpaste, good ongoing supervision by a dentist.
伯顿·埃德尔斯坦：控制饮食，经常使用含氟牙膏，牙医不间断地悉心监督。
Edelstein: I don't want to say too much, but she definitely has some new challenges coming her way. She has a lot more on her plate.
答：我不能说的太多，不过可以肯定的说她面临着很多新的挑战，需要处理的事情非常多。
Edelstein: I don't want to say too much, but she definitely has some new challenges coming her way. She has a lot more on her plate.
答：我不能说的太多，不过可以肯定的说她面临着很多新的挑战，需要处理的事情非常多。
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